Professor Robert Hadfield
- Professor of Photonics (Electronic & Nanoscale Engineering)
telephone:
01413304929
email:
Robert.Hadfield@glasgow.ac.uk
School of Engineering, Rankine Building, R618 Level 6
Research interests
Biography
Robert Hadfield is Professor of Photonics in the James Watt School of Engineering at the University of Glasgow. He served as Head of the Division of Electronic and Nanoscale Engineering from August 2014 to July 2018. He is a co-investigator of QUANTIC, the UK Quantum Technology hub in imaging and QComm, the UK Quantum Technology hub in quantum communications. He is a founder member of the University of Glasgow Centre for Quantum Technology and serves on the Executive Committee of the James Watt Nanofabrication Centre. He is based in the University of Glasgow Advanced Research Centre under the Quantum and Nano theme.
He completed his PhD at the University of Cambridge, UK in 2003. He was a postdoctoral guest researcher at the US National Institute of Standards and Technology in Boulder, Colorado from 2003 to 2006. He returned to the UK in 2007 as a Royal Society University Research Fellow at Heriot-Watt University and was promoted to Reader in Physics in 2009.
He was awarded the 2012 J&E Hall Gold Medal of the Institute of Refrigeration, the 2013 Brian Pippard Prize of the Institute of Physics Superconductivity Group and the 2019 James Joule Medal of the Institute of Physics. He was elected a Fellow of the Institute of Physics in 2010, a Fellow of the Institution of Engineering and Technology in 2015, a Fellow of the Optical Society of Amercia in 2016 and a Fellow of the Royal Society of Edinburgh in 2019. He is a Senior Member of IEEE and SPIE. He has served on the editoral boards of the Journals Superconductor Science and Technology (IoP), Optics Express (OSA) and Royal Society Open Science (Royal Society of London). He joined the editorial board of Optica (OSA) from April 2019. He is editor of a major title in the Springer Quantum Science and Technology Series, Superconducting Devices in Quantum Optics, published in spring 2016. He was Guest Professor at the Royal Insitute of Technology (KTH), Stockholm, Sweden in August 2018 through the Wallenberg Centre for Quantum Technology. He held a European Reserch Council Consolidator Grant from 2015-2019 and a Royal Society Leverhulme Trust Research Fellowship in 2018-19. He was co-chair of the European Conference on Applied Superconductivity, EUCAS 2019, at the Scottish Event Campus, SEC, in Glasgow in September 2019. He will co-chair the Single Photon Workshop SPW2024 in Edinburgh in autumn 2024.
Publications
Professor Hadfield has published over 100 peer-reviewed papers in international Journals, including 10 in Nature Journals and one in Science Advances.
Web of Science Researcher ID L-8081-2013
ORCID ID http://orcid.org/0000-0002-8084-4187
Google Scholar Robert Hadfield
Research Group
Professor Hadfield leads the Quantum Sensors group at the University of Glasgow.
Website: Quantum Sensors
Publications
2024
Azem, A., Morozov, D. V. , Kuznesof, D., Bruscino, C., Hadfield, R. H. , Chrostowski, L. and Young, J. F. (2024) Mid-infrared characterization of NbTiN superconducting nanowire single-photon detectors on silicon-on-insulator. Applied Physics Letters, (Accepted for Publication)
Yu, H., Kwon, O., Namburi, D. K., Hadfield, R. H. , Grote, H. and Martynov, D. (2024) Photon counting for axion interferometry. Physical Review D, 109(9), 095042. (doi: 10.1103/PhysRevD.109.095042)
2023
Lennon, C., Shu, Y., Brennan, J., Namburi, D. K., Varghes, V., Hemakumara, T., Longchar, L., Srinath, S. and Hadfield, R. H. (2023) High-uniformity atomic layer deposition of superconducting niobium nitride thin films for quantum photonic integration. Materials for Quantum Technology, 3, 045401. (doi: 10.1088/2633-4356/ad0aa5)
Peeters, S. A., Lennon, C. T., Merkx, M. J.M., Hadfield, R. H. , Kessels, W. M. M. (E.), Verheijen, M. A. and Knoops, H. C. M. (2023) Ultrathin superconducting TaCxN1−x films prepared by plasma-enhanced atomic layer deposition with ion-energy control. Applied Physics Letters, 123, 132603. (doi: 10.1063/5.0169339)
Romeira, B. et al. (2023) Brain-inspired nanophotonic spike computing: challenges and prospects. Neuromorphic Computing and Engineering, 3(3), 033001. (doi: 10.1088/2634-4386/acdf17)
Hadfield, R. H. , Leach, J., Fleming, F., Paul, D. J. , Tan, C. H., Ng, J. S., Henderson, R. K. and Buller, G. S. (2023) Single-photon detection for long-range imaging and sensing. Optica, 10(9), pp. 1124-1141. (doi: 10.1364/OPTICA.488853)
Seferai, V. et al. (2023) Recent Material Developments for Superconducting Quantum Circuits. 2023 Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC & ICMC 2023), Honolulu, HI, USA, 09-13 Jul 2023.
Merino, R. L., Seifert, P., Duran Retamal, J., Mech, R., Taniguchi, T., Watanabe, K., Kadowaki, K., Hadfield, R. H. and Efetov, P. D. D. K. (2023) Two-dimensional cuprate nanodetector with single telecom photon sensitivity at T = 20 K. 2D Materials, 10, 021001. (doi: 10.1088/2053-1583/acb4a8)
2022
Foshat, P. et al. (2022) Nitride-based superconducting coplanar waveguide resonator with an internal quality factor above one million. 35th International Symposium on Superconductivity (ISS2022), Nagoya, Japan, 29 November – 1 December 2022.
Taylor, G. G., Mackenzie, E. N., Korzh, B., Morozov, D. V. , Bumble, B., Beyer, A. D., Allmaras, J. P., Shaw, M. D. and Hadfield, R. H. (2022) Mid-infrared timing jitter of superconducting nanowire single-photon detectors. Applied Physics Letters, 121(21), 214001. (doi: 10.1063/5.0128129)
Casaburi, A. and Hadfield, R. H. (2022) Superconducting circuits that mimic the brain. Nature Electronics, 5(10), pp. 627-628. (doi: 10.1038/s41928-022-00855-2)
Cooper, B. E. and Hadfield, R. H. (2022) Viewpoint: Compact cryogenics for superconducting photon detectors. Superconductor Science and Technology, 35(8), 080501. (doi: 10.1088/1361-6668/ac76e9)
Foshat, P., Danilin, S. , Baity, P. , Seferai, V. , Mukhanov, O., Hutchings, M., Hadfield, R. , Imran, M. , Weides, M. and Delfanazari, K. (2022) Microwave Photonic Losses in Niobium Nitride-based Superconducting Resonator Array. In: Applied Superconductivity Conference (ASC 22), Honolulu, Hawaii, 23-28 October 2022, (Accepted for Publication)
Paul, J. , Weides, M. and Hadfield, R. (2022) Fabrication of Superconducting-Devices for Quantum Technologies. James Watt Nanofabrication Centre (JWNC) Mini Conference, Glasgow, UK, 17 May 2022.
Seferai, V. et al. (2022) Tantalum on Sapphire and Silicon Substrates for Superconducting Quantum Circuits. American Physical Society March Meeting 2022, Chicago, IL, USA, 14-18 Mar 2022.
2021
Dada, A. C. , Kaniewski, J., Gawith, C., Lavery, M. , Hadfield, R. H. , Faccio, D. and Clerici, M. (2021) Near-maximal two-photon entanglement for optical quantum communication at 2.1 μm. Physical Review Applied, 16(5), L051005. (doi: 10.1103/PhysRevApplied.16.L051005)
Baity, P. G. et al. (2021) Strong magnon-photon coupling with chip-integrated YIG in the zero-temperature limit. Applied Physics Letters, 119(3), 033502. (doi: 10.1063/5.0054837)
Taylor, G. G., Morozov, D. V. , Lennon, C. T., Barry, P. S., Sheagren, C. and Hadfield, R. H. (2021) Infrared single-photon sensitivity in atomic layer deposited superconducting nanowires. Applied Physics Letters, 118(19), 191106. (doi: 10.1063/5.0048799)
Morozov, D. V. , Casaburi, A. and Hadfield, R. H. (2021) Superconducting photon detectors. Contemporary Physics, 62(2), pp. 69-91. (doi: 10.1080/00107514.2022.2043596)
Baity, P. G. et al. (2021) Strong Magnon-Photon Coupling On-Chip for YIG in the Zero-Temperature Limit. American Physical Society March Meeting 2021, Online, 15-19 Mar 2021.
Zhang, W., Al-Khalidi, A. , Figueiredo, J., Al-Taai, Q. R. A. , Wasige, E. and Hadfield, R. H. (2021) Analysis of excitability in resonant tunneling diode-photodetectors. Nanomaterials, 11(6), 1590. (doi: 10.3390/nano11061590)
2020
Hadfield, R. H. (2020) Superfast photon counting. Nature Photonics, 14(4), pp. 201-202. (doi: 10.1038/s41566-020-0614-0)
Prabhakar, S. et al. (2020) Two-photon quantum interference and entanglement at 2.1 μm. Science Advances, 6(13), eaay5195. (doi: 10.1126/sciadv.aay5195)
2019
Taylor, G. G., Morozov, D. , Gemmell, N., Erotokritou, K., Miki, S., Terai, H. and Hadfield, R. (2019) Photon counting LIDAR at 2.3μm wavelength with superconducting nanowires. Optics Express, 27, 38147. (doi: 10.1364/OE.27.038147)
Orchin, G., Paul, J. , Nasti, U., Erotokritou, K., Sorel, M. , Heath, R. M. , Slater, B., Sahin, D., Barret, J. and Hadfield, R. H. (2019) Waveguide Integrated SNSPD Arrays for Scalable Quantum Photonics. 2019 14th European Conference on Applied Superconductivity (EUCAS), Glasgow, UK, 01-05 Sep 2019.
Paul, J. et al. (2019) Superconducting Nanowire-Single Photon Detectors on Waveguide Circuits for Secure Quantum Communications. Superconducting Quantum Devices 2019 (SQD2019), Glasgow, UK, 05-06 Sep 2019.
Miki, S., Miyajima, S., Yabuno, M., Yamashita, T., Yamamoto, T., Imoto, N., Ikuta, R., Kirkwood, R. A., Hadfield, R. H. and Terai, H. (2019) Timing jitter characterization of the SFQ coincidence circuit by optically time-controlled signals from SSPDs. IEEE Transactions on Applied Superconductivity, 29(5), 1302104. (doi: 10.1109/TASC.2019.2906258)
Orchin, G.J. et al. (2019) Niobium diselenide superconducting photodetectors. Applied Physics Letters, 114(25), 251103. (doi: 10.1063/1.5097389)
Tsimvrakidis, K., Gemmell, N. R., Erotokritou, K., Miki, S., Yabuno, M., Yamashita, T., Terai, H. and Hadfield, R. H. (2019) Enhanced optics for time-resolved singlet oxygen luminescence detection. IEEE Journal of Selected Topics in Quantum Electronics, 25(1), 7000107. (doi: 10.1109/JSTQE.2018.2836962)
2018
Erotokritou, K., Heath, R. M. , Taylor, G. G., Tian, C., Banerjee, A., Casaburi, A. , Natarajan, C. M., Miki, S., Terai, H. and Hadfield, R. H. (2018) Nano-optical photoresponse mapping of superconducting nanowires with enhanced near infrared absorption. Superconductor Science and Technology, 31(12), 125012. (doi: 10.1088/1361-6668/aae4bb)
Morozov, D. , Doyle, S. M., Banerjee, A., Brien, T. L.R., Hemakumara, D., Thayne, I. G. , Wood, K. and Hadfield, R. H. (2018) Design and characterisation of titanium nitride sub-arrays of kinetic inductance detectors for passive terahertz imaging. Journal of Low Temperature Physics, 193(3-4), pp. 196-202. (doi: 10.1007/s10909-018-2023-z)
Paul, J. et al. (2018) Integrated Superconducting Nanowire Single Photon Detectors for Scalable Silicon Quantum Photonics. Photon 2018 Conference, Birmingham, UK, 3-6 Sep 2018.
Banerjee, A., Heath, R. M. , Morozov, D. , Hemakumara, D., Nasti, U., Thayne, I. and Hadfield, R. H. (2018) Optical properties of refractory metal based thin films. Optical Materials Express, 8(8), pp. 2072-2088. (doi: 10.1364/OME.8.002072)
Joshi, S. K. et al. (2018) Space QUEST mission proposal: experimentally testing decoherence due to gravity. New Journal of Physics, 20(6), 063016. (doi: 10.1088/1367-2630/aac58b)
Casaburi, A. , Heath, R.M. , Cristiano, R., Ejrnaes, M., Zen, N., Ohkubo, M. and Hadfield, R.H. (2018) Integrated Joule switches for the control of current dynamics in parallel superconducting strips. Superconductor Science and Technology, 31(6), 06LT01. (doi: 10.1088/1361-6668/aabcfd)
Miki, S., Miyajima, S., Yabuno, M., Yamashita, T., Yamamoto, T., Imoto, N., Ikuta, R., Kirkwood, R.A., Hadfield, R.H. and Terai, H. (2018) Superconducting coincidence photon detector with short timing jitter. Applied Physics Letters, 112, 262601. (doi: 10.1063/1.5037254)
2017
Gemmell, N. R. et al. (2017) A miniaturized 4 K platform for superconducting infrared photon counting detectors. Superconductor Science and Technology, 30(11), 11LT01. (doi: 10.1088/1361-6668/aa8ac7)
Santagati, R. et al. (2017) Silicon photonic processor of two-qubit entangling quantum logic. Journal of Optics, 19(11), 114006. (doi: 10.1088/2040-8986/aa8d56)
Banerjee, A., Baker, L. J., Doye, A., Nord, M., Heath, R. M. , Erotokritou, K., Bosworth, D., Barber, Z. H., MacLaren, I. and Hadfield, R. H. (2017) Characterisation of amorphous molybdenum silicide (MoSi) superconducting thin films and nanowires. Superconductor Science and Technology, 30(8), 084010. (doi: 10.1088/1361-6668/aa76d8)
Wisaksono, A. , Pizzone, A. , Gemmell, N. R., Younger, P. L. and Hadfield, R. H. (2017) Direct Downhole Temperature Measurement and Real Time Pressure -Enthalpy Model Through Photon Counting Fibre Optic Temperature Sensing. 42nd Workshop on Geothermal Reservoir Engineering, Stanford, CA, USA, 13-15 Feb 2017.
Piekarek, M. et al. (2017) High-extinction ratio integrated photonic filters for silicon quantum photonics. Optics Letters, 42(4), pp. 815-818. (doi: 10.1364/OL.42.000815) (PMID:28198872)
Gemmell, N. R., McCarthy, A., Kim, M. M., Veilleux, I., Zhu, T. C., Buller, G. S., Wilson, B. C. and Hadfield, R. H. (2017) A compact fiber-optic probe-based singlet oxygen luminescence detection system. Journal of Biophotonics, 10(2), pp. 320-326. (doi: 10.1002/jbio.201600078) (PMID:27455426) (PMCID:PMC5266677)
Sibson, P. et al. (2017) Chip-based quantum key distribution. Nature Communications, 8, 13984. (doi: 10.1038/ncomms13984) (PMID:28181489) (PMCID:PMC5309763)
2016
Kim, M. M., Penjweini, R., Gemmell, N. R., Veilleux, I., McCarthy, A., Buller, G. S., Hadfield, R. H. , Wilson, B. C. and Zhu, T. C. (2016) A comparison of singlet oxygen explicit dosimetry (SOED) and singlet oxygen luminescence dosimetry (SOLD) for photofrin-mediated photodynamic therapy. Cancers, 8(12), p. 109. (doi: 10.3390/cancers8120109) (PMID:27929427)
Al-Khuzheyri, R. et al. (2016) Resonance fluorescence from a telecom-wavelength quantum dot. Applied Physics Letters, 109(16), 163104. (doi: 10.1063/1.4965845)
Yamashita, T., Waki, K., Miki, S., Kirkwood, R. A., Hadfield, R. H. and Terai, H. (2016) Superconducting nanowire single-photon detectors with non-periodic dielectric multilayers. Scientific Reports, 6, p. 35240. (doi: 10.1038/srep35240) (PMID:27775712) (PMCID:PMC5076433)
Heath, R. , Tanner, M. G., Kirkwood, R. A., Miki, S., Warburton, R. J. and Hadfield, R. H. (2016) A tunable fiber-coupled optical cavity for agile enhancement of detector absorption. Journal of Applied Physics, 120(11), 113101. (doi: 10.1063/1.4962456)
Li, J. et al. (2016) Nano-optical single-photon response mapping of waveguide integrated molybdenum silicide (MoSi) superconducting nanowires. Optics Express, 24(13), pp. 13931-13938. (doi: 10.1364/OE.24.013931) (PMID:27410555)
Wang, J. et al. (2016) Chip-to-chip quantum photonic interconnect by path-polarization interconversion. Optica, 3(4), pp. 407-413. (doi: 10.1364/OPTICA.3.000407)
Kim, M. M., Penjweini, R., Gemmell, N. R., Veilleux, I., McCarthy, A., Buller, G., Hadfield, R. H. , Wilson, B. C. and Zhu, T. C. (2016) A Feasibility Study of Singlet Oxygen Explicit Dosmietry (SOED) of PDT by Intercomparison with a Singlet Oxygen Luminescence Dosimetry (SOLD) System. In: Optical Methods for Tumor Treatment and Detection: Mechanisms and Techniques in Photodynamic Therapy XXV, San Francisco, CA, USA, 13 Feb 2016, p. 969406. (doi: 10.1117/12.2213236)
Hadfield, R. H. and Johansson, G. (Eds.) (2016) Superconducting Devices in Quantum Optics. Series: Quantum science and technology. Springer. ISBN 9783319240893
2015
Aspden, R. et al. (2015) Photon-sparse microscopy: visible light imaging using infrared illumination. Optica, 2(12), pp. 1049-1052. (doi: 10.1364/OPTICA.2.001049)
Casaburi, A. , Heath, R.M. , Ejrnaes, M., Nappi, C., Cristiano, R. and Hadfield, R.H. (2015) Experimental evidence of photoinduced vortex crossing in current carrying superconducting strips. Physical Review B, 92(21), 214512. (doi: 10.1103/PhysRevB.92.214512)
Yu, L. et al. (2015) Two-photon interference at telecom wavelengths for time-bin-encoded single photons from quantum-dot spin qubits. Nature Communications, 6, 8955. (doi: 10.1038/ncomms9955) (PMID:26597223) (PMCID:PMC4673878)
Bosworth, D., Sahonta, S.-L., Hadfield, R.H. and Barber, Z.H. (2015) Amorphous molybdenum silicon superconducting thin films. AIP Advances, 5(8), 087106. (doi: 10.1063/1.4928285)
Heath, R. M. , Tanner, M. G., Drysdale, T. D., Miki, S., Giannini, V., Maier, S. A. and Hadfield, R. H. (2015) Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors. Nano Letters, 15(2), pp. 819-822. (doi: 10.1021/nl503055a) (PMID:25575021)
Meehan, K., Hadfield, R. and Phillips, A. (2015) A Simple Hands-on Experiment for First-year Undergraduates that Connects the Electrical and Thermal Properties of Metals. In: 2015 ASEE Annual Conference and Exposition, Seattle, WA, USA, 14-17 June 2015, 26.109.1-26.109.16. (doi: 10.18260/p.23450)
2014
Wang, J. et al. (2014) Gallium arsenide (GaAs) quantum photonic waveguide circuits. Optics Communications, 327, pp. 49-55. (doi: 10.1016/j.optcom.2014.02.040)
Casaburi, A. , Pizzone, A. and Hadfield, R. H. (2014) Large Area Superconducting Nanowire Single Photon Detector Arrays. In: Fotonica AEIT Italian Conference on Photonics Technologies, Naples, Italy, 12-14 May 2014, pp. 1-4. ISBN 9788887237184 (doi: 10.1109/Fotonica.2014.6843851)
Heath, R. M. , Tanner, M. G., Casaburi, A. , Webster, M. G., San Emeterio Alvarez, L., Jiang, W., Barber, Z. H., Warburton, R. J. and Hadfield, R. H. (2014) Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector. Applied Physics Letters, 104(6), 063503. (doi: 10.1063/1.4865199)
Casaburi, A. , Heath, R.M. , Tanner, M.G., Cristiano, R., Ejrnaes, M., Nappi, C. and Hadfield, R. (2014) Parallel superconducting strip-line detectors: reset behaviour in the single-strip switch regime. Superconductor Science and Technology, 27(4), 044029. (doi: 10.1088/0953-2048/27/4/044029)
Silverstone, J.W. et al. (2014) On-chip quantum interference between silicon photon-pair sources. Nature Photonics, 8(2), pp. 104-108. (doi: 10.1038/nphoton.2013.339)
Tanner, M. G., Makarov, V. and Hadfield, R. H. (2014) Optimised quantum hacking of superconducting nanowire single-photon detectors. Optics Express, 22(6), pp. 6734-6748. (doi: 10.1364/OE.22.006734)
2013
McCarthy, A., Krichel, N.J., Gemmell, N. R., Ren, X., Tanner, M.G., Dorenbos, S.N., Zwiller, V., Hadfield, R. and Buller, G.S. (2013) Kilometer-range, high resolution depth imaging via 1560 nm wavelength single-photon detection. Optics Express, 21(7), pp. 8904-8915. (doi: 10.1364/OE.21.008904)
Gemmell, N. R., McCarthy, A., Liu, B., Tanner, M.G., Dorenbos, S.D., Zwiller, V., Patterson, M.S., Buller, G.S., Wilson, B.C. and Hadfield, R.H. (2013) Singlet oxygen luminescence detection with a fiber-coupled superconducting nanowire single-photon detector. Optics Express, 21(4), pp. 5005-5013. (doi: 10.1364/OE.21.005005)
Natarajan, C.M., Zhang, L., Coldenstrodt-Ronge, H., Donati, G., Dorenbos, S.N., Zwiller, V., Walmsley, I.A. and Hadfield, R. (2013) Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths. Optics Express, 21(1), pp. 893-902. (doi: 10.1364/OE.21.000893)
Burenkov, V., Xu, H., Qi, B., Hadfield, R. and Lo, H.-K. (2013) Investigations of afterpulsing and detection efficiency recovery in superconducting nanowire single-photon detectors. Journal of Applied Physics, 113(21), p. 213102. (doi: 10.1063/1.4807833)
Casaburi, A. , Heath, R.M. , Tanner, M.G., Cristiano, R., Ejrnaes, M., Nappi, C. and Hadfield, R.H. (2013) Current distribution in a parallel configuration superconducting strip-line detector. Applied Physics Letters, 103(1), 013503. (doi: 10.1063/1.4813087)
De Greve, K. et al. (2013) Complete tomography of a high-fidelity solid-state entangled spin–photon qubit pair. Nature Communications, 4, (doi: 10.1038/ncomms3228)
2012
Tanner, M.G., Alvarez, L.S.E., Jiang, W., Warburton, R.J., Barber, Z.H. and Hadfield, R.H. (2012) A superconducting nanowire single photon detector on lithium niobate. Nanotechnology, 23(50), p. 505201. (doi: 10.1088/0957-4484/23/50/505201)
Natarajan, C.M., Tanner, M.G. and Hadfield, R. (2012) Superconducting nanowire single-photon detectors: physics and applications. Superconductor Science and Technology, 25(6), 063001. (doi: 10.1088/0953-2048/25/6/063001)
Dyer, S.D., Tanner, M.G., Baek, B., Hadfield, R. and Nam, S.W. (2012) Analysis of a distributed fiber-optic temperature sensor using single-photon detectors. Optics Express, 20(4), p. 3456. (doi: 10.1364/OE.20.003456)
Bonneau, D. et al. (2012) Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits. New Journal of Physics, 14(4), 045003. (doi: 10.1088/1367-2630/14/4/045003)
Bonneau, D., Lobino, M., Jiang, P., Natarajan, C.M., Tanner, M.G., Hadfield, R.H. , Dorenbos, S.N., Zwiller, V., Thompson, M.G. and O'Brien, J.L. (2012) Fast Path and polarization manipulation of telecom wavelength single photons in lithium niobate waveguide devices. Physical Review Letters, 108(5), 053601. (doi: 10.1103/PhysRevLett.108.053601)
De Greve, K. et al. (2012) Quantum-dot spin–photon entanglement via frequency downconversion to telecom wavelength. Nature, 491(7424), pp. 421-425. (doi: 10.1038/nature11577)
Prechtel, J.H., Dalgarno, P.A., Hadfield, R. , McFarlane, J., Badolato, A., Petroff, P.M. and Warburton, R.J. (2012) Fast electro-optics of a single self-assembled quantum dot in a charge-tunable device. Journal of Applied Physics, 111(4), 043112. (doi: 10.1063/1.3687375)
2011
Gerrits, T. et al. (2011) Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths. Optics Express, 19(24), p. 24434. (doi: 10.1364/OE.19.024434)
Clarke, P.J. et al. (2011) Analysis of detector performance in a gigahertz clock rate quantum key distribution system. New Journal of Physics, 13(7), 075008. (doi: 10.1088/1367-2630/13/7/075008)
Lobino, M. et al. (2011) Correlated photon-pair generation in a periodically poled MgO doped stoichiometric lithium tantalate reverse proton exchanged waveguide. Applied Physics Letters, 99(8), 081110. (doi: 10.1063/1.3628328)
O’Connor, J.A., Tanner, M.G., Natarajan, C.M., Buller, G.S., Warburton, R.J., Miki, S., Wang, Z., Nam, S.W. and Hadfield, R.H. (2011) Spatial dependence of output pulse delay in a niobium nitride nanowire superconducting single-photon detector. Applied Physics Letters, 98(20), p. 201116. (doi: 10.1063/1.3581054)
Tanner, M. G., Dyer, S. D., Baek, B., Hadfield, R. H. and Woo Nam, S. W. (2011) High-resolution single-mode fiber-optic distributed Raman sensor for absolute temperature measurement using superconducting nanowire single-photon detectors. Applied Physics Letters, 99(20), p. 201110. (doi: 10.1063/1.3656702)
Xiong, C. et al. (2011) Generation of correlated photon pairs in a chalcogenide As2S3 waveguide. Applied Physics Letters, 98(5), 051101. (doi: 10.1063/1.3549744)
2010
Gong, Y. et al. (2010) Linewidth narrowing and Purcell enhancement in photonic crystal cavities on an Er-doped silicon nitride platform. Optics Express, 18(3), p. 2601. (doi: 10.1364/OE.18.002601)
Collins, R.J., Hadfield, R. and Buller, G.S. (2010) Commentary: new developments in single photon detection in the short wavelength infrared regime. Journal of Nanophotonics, 4(1), 040301. (doi: 10.1117/1.3314890)
Dorenbos, S.N. et al. (2010) Position controlled nanowires for infrared single photon emission. Applied Physics Letters, 97(17), p. 171106. (doi: 10.1063/1.3506499)
Natarajan, C.M., Peruzzo, A., Miki, S., Sasaki, M., Wang, Z., Baek, B., Nam, S., Hadfield, R.H. and O’Brien, J.L. (2010) Operating quantum waveguide circuits with superconducting single-photon detectors. Applied Physics Letters, 96(21), p. 211101. (doi: 10.1063/1.3413948)
Tanner, M.G. et al. (2010) Enhanced telecom wavelength single-photon detection with NbTiN superconducting nanowires on oxidized silicon. Applied Physics Letters, 96(22), p. 221109. (doi: 10.1063/1.3428960)
2009
Rosenberg, D. et al. (2009) Practical long-distance quantum key distribution system using decoy levels. New Journal of Physics, 11(4), 045009. (doi: 10.1088/1367-2630/11/4/045009)
Hadfield, R.H. (2009) Single-photon detectors for optical quantum information applications. Nature Photonics, 3(12), pp. 696-705. (doi: 10.1038/nphoton.2009.230)
McFarlane, J., Dalgarno, P.A., Gerardot, B.D., Hadfield, R.H. , Warburton, R.J., Karrai, K., Badolato, A. and Petroff, P.M. (2009) Gigahertz bandwidth electrical control over a dark exciton-based memory bit in a single quantum dot. Applied Physics Letters, 94(9), 093113. (doi: 10.1063/1.3086461)
Stevens, M.J., Hadfield, R.H. , Gerrits, T., Clement, T.S., Mirin, R.P. and Nam, S.W. (2009) Infrared wavelength-dependent optical characterization of NbN nanowire superconducting single-photon detectors. Journal of Modern Optics, 56(2-3), pp. 358-363. (doi: 10.1080/09500340802322426)
Ursin, R. et al. (2009) Space-quest, experiments with quantum entanglement in space. Europhysics News, 40(3), pp. 26-29. (doi: 10.1051/epn/2009503)
2008
Serrels, K.A., Ramsay, E., Dalgarno, P.A., Gerardot, B., O'Connor, J., Hadfield, R.H. , Warburton, R.J. and Reid, D.T. (2008) Solid immersion lens applications for nanophotonic devices. Journal of Nanophotonics, 2(1), 021854. (doi: 10.1117/1.3068652)
Honjo, T. et al. (2008) Long-distance entanglement-based quantum key distribution over optical fiber. Optics Express, 16(23), pp. 19118-19126. (doi: 10.1364/OE.16.019118)
Chen, J., Altepeter, J.B., Medic, M., Lee, K.F., Gokden, B., Hadfield, R.H. , Nam, S.W. and Kumar, P. (2008) Demonstration of a quantum controlled-NOT gate in the telecommunications band. Physical Review Letters, 100(13), p. 133603. (doi: 10.1103/PhysRevLett.100.133603)
Miki, S., Fujiwara, M., Sasaki, M., Baek, B., Miller, A.J., Hadfield, R.H. , Nam, S.W. and Wang, Z. (2008) Large sensitive-area NbN nanowire superconducting single-photon detectors fabricated on single-crystal MgO substrates. Applied Physics Letters, 92(6), 061116. (doi: 10.1063/1.2870099)
Rowe, M.A., Gansen, E.J., Greene, M.B., Rosenberg, D., Harvey, T.E., Su, M.Y., Hadfield, R.H. , Nam, S.W. and Mirin, R.P. (2008) Designing high electron mobility transistor heterostructures with quantum dots for efficient, number-resolving photon detection. Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 26(3), p. 1174. (doi: 10.1116/1.2837839)
2007
Gansen, E.J., Rowe, M.A., Greene, M.B., Rosenberg, D., Harvey, T.E., Su, M.Y., Hadfield, R.H. , Nam, S.W. and Mirin, R.P. (2007) Photon-number-discriminating detection using a quantum-dot, optically gated, field-effect transistor. Nature Photonics, 1(10), pp. 585-588. (doi: 10.1038/nphoton.2007.173)
Warburton, R.E., McCarthy, A., Wallace, A.M., Hernandez-Marin, S., Hadfield, R. , Nam, S.W. and Buller, G.S. (2007) Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength. Optics Letters, 32(15), pp. 2266-2268. (doi: 10.1364/OL.32.002266)
Liang, C., Lee, K.F., Medic, M., Kumar, P., Hadfield, R. and Nam, S.W. (2007) Characterization of fiber-generated entangled photon pairs with superconducting single-photon detectors. Optics Express, 15(3), pp. 1322-1327. (doi: 10.1364/OE.15.001322)
Collins, R.J., Hadfield, R.H. , Fernandez, V., Nam, S.W. and Buller, G.S. (2007) Low timing jitter detector for gigahertz quantum key distribution. Electronics Letters, 43(3), pp. 180-182. (doi: 10.1049/el:20073748)
Gansen, E.J., Rowe, M.A., Greene, M.B., Rosenberg, D., Harvey, T.E., Su, M.Y., Hadfield, R.H. , Nam, S.W. and Mirin, R.P. (2007) Operational analysis of a quantum dot optically gated field-effect transistor as a single-photon detector. IEEE Journal of Selected Topics in Quantum Electronics, 13(4), pp. 967-977. (doi: 10.1109/JSTQE.2007.902843)
Hadfield, R.H. , Dalgarno, P.A., O’Connor, J.A., Ramsay, E., Warburton, R.J., Gansen, E.J., Baek, B., Stevens, M.J., Mirin, R.P. and Nam, S.W. (2007) Submicrometer photoresponse mapping of nanowire superconducting single-photon detectors. Applied Physics Letters, 91(24), p. 241108. (doi: 10.1063/1.2824384)
Hadfield, R.H. , Stevens, M.J., Mirin, R.P. and Nam, S.W. (2007) Single-photon source characterization with twin infrared-sensitive superconducting single-photon detectors. Journal of Applied Physics, 101(10), p. 103104. (doi: 10.1063/1.2717582)
Takesue, H., Nam, S.W., Zhang, Q., Hadfield, R.H. , Honjo, T., Tamaki, K. and Yamamoto, Y. (2007) Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors. Nature Photonics, 1(6), pp. 343-348. (doi: 10.1038/nphoton.2007.75)
2006
Hadfield, R.H. , Habif, J.L., Schlafer, J., Schwall, R.E. and Nam, S.W. (2006) Quantum key distribution at 1550 nm with twin superconducting single-photon detectors. Applied Physics Letters, 89(24), p. 241129. (doi: 10.1063/1.2405870)
Jaspan, M.A., Habif, J.L., Hadfield, R.H. and Nam, S.W. (2006) Heralding of telecommunication photon pairs with a superconducting single photon detector. Applied Physics Letters, 89(3), 031112. (doi: 10.1063/1.2219411)
Rowe, M.A., Gansen, E.J., Greene, M., Hadfield, R.H. , Harvey, T.E., Su, M.Y., Nam, S.W., Mirin, R.P. and Rosenberg, D. (2006) Single-photon detection using a quantum dot optically gated field-effect transistor with high internal quantum efficiency. Applied Physics Letters, 89(25), p. 253505. (doi: 10.1063/1.2403907)
Stevens, M.J., Hadfield, R.H. , Schwall, R.E., Nam, S.W. and Mirin, R.P. (2006) Quantum dot single photon sources studied with superconducting single photon detectors. IEEE Journal of Selected Topics in Quantum Electronics, 12(6), pp. 1255-1268. (doi: 10.1109/JSTQE.2006.885088)
Stevens, M.J., Hadfield, R.H. , Schwall, R.E., Nam, S.W., Mirin, R.P. and Gupta, J.A. (2006) Fast lifetime measurements of infrared emitters using a low-jitter superconducting single-photon detector. Applied Physics Letters, 89(3), 031109. (doi: 10.1063/1.2221516)
2005
Hadfield, R. , Stevens, M.J., Gruber, S.S., Miller, A.J., Schwall, R.E., Mirin, R.P. and Nam, S.W. (2005) Single photon source characterization with a superconducting single photon detector. Optics Express, 13(26), pp. 10846-10853. (doi: 10.1364/OPEX.13.010846)
Hadfield, R.H. , Miller, A.J., Nam, S.W., Kautz, R.L. and Schwall, R.E. (2005) Low-frequency phase locking in high-inductance superconducting nanowires. Applied Physics Letters, 87(20), p. 203505. (doi: 10.1063/1.2130525)
Articles
Azem, A., Morozov, D. V. , Kuznesof, D., Bruscino, C., Hadfield, R. H. , Chrostowski, L. and Young, J. F. (2024) Mid-infrared characterization of NbTiN superconducting nanowire single-photon detectors on silicon-on-insulator. Applied Physics Letters, (Accepted for Publication)
Yu, H., Kwon, O., Namburi, D. K., Hadfield, R. H. , Grote, H. and Martynov, D. (2024) Photon counting for axion interferometry. Physical Review D, 109(9), 095042. (doi: 10.1103/PhysRevD.109.095042)
Lennon, C., Shu, Y., Brennan, J., Namburi, D. K., Varghes, V., Hemakumara, T., Longchar, L., Srinath, S. and Hadfield, R. H. (2023) High-uniformity atomic layer deposition of superconducting niobium nitride thin films for quantum photonic integration. Materials for Quantum Technology, 3, 045401. (doi: 10.1088/2633-4356/ad0aa5)
Peeters, S. A., Lennon, C. T., Merkx, M. J.M., Hadfield, R. H. , Kessels, W. M. M. (E.), Verheijen, M. A. and Knoops, H. C. M. (2023) Ultrathin superconducting TaCxN1−x films prepared by plasma-enhanced atomic layer deposition with ion-energy control. Applied Physics Letters, 123, 132603. (doi: 10.1063/5.0169339)
Romeira, B. et al. (2023) Brain-inspired nanophotonic spike computing: challenges and prospects. Neuromorphic Computing and Engineering, 3(3), 033001. (doi: 10.1088/2634-4386/acdf17)
Hadfield, R. H. , Leach, J., Fleming, F., Paul, D. J. , Tan, C. H., Ng, J. S., Henderson, R. K. and Buller, G. S. (2023) Single-photon detection for long-range imaging and sensing. Optica, 10(9), pp. 1124-1141. (doi: 10.1364/OPTICA.488853)
Merino, R. L., Seifert, P., Duran Retamal, J., Mech, R., Taniguchi, T., Watanabe, K., Kadowaki, K., Hadfield, R. H. and Efetov, P. D. D. K. (2023) Two-dimensional cuprate nanodetector with single telecom photon sensitivity at T = 20 K. 2D Materials, 10, 021001. (doi: 10.1088/2053-1583/acb4a8)
Taylor, G. G., Mackenzie, E. N., Korzh, B., Morozov, D. V. , Bumble, B., Beyer, A. D., Allmaras, J. P., Shaw, M. D. and Hadfield, R. H. (2022) Mid-infrared timing jitter of superconducting nanowire single-photon detectors. Applied Physics Letters, 121(21), 214001. (doi: 10.1063/5.0128129)
Casaburi, A. and Hadfield, R. H. (2022) Superconducting circuits that mimic the brain. Nature Electronics, 5(10), pp. 627-628. (doi: 10.1038/s41928-022-00855-2)
Cooper, B. E. and Hadfield, R. H. (2022) Viewpoint: Compact cryogenics for superconducting photon detectors. Superconductor Science and Technology, 35(8), 080501. (doi: 10.1088/1361-6668/ac76e9)
Dada, A. C. , Kaniewski, J., Gawith, C., Lavery, M. , Hadfield, R. H. , Faccio, D. and Clerici, M. (2021) Near-maximal two-photon entanglement for optical quantum communication at 2.1 μm. Physical Review Applied, 16(5), L051005. (doi: 10.1103/PhysRevApplied.16.L051005)
Baity, P. G. et al. (2021) Strong magnon-photon coupling with chip-integrated YIG in the zero-temperature limit. Applied Physics Letters, 119(3), 033502. (doi: 10.1063/5.0054837)
Taylor, G. G., Morozov, D. V. , Lennon, C. T., Barry, P. S., Sheagren, C. and Hadfield, R. H. (2021) Infrared single-photon sensitivity in atomic layer deposited superconducting nanowires. Applied Physics Letters, 118(19), 191106. (doi: 10.1063/5.0048799)
Morozov, D. V. , Casaburi, A. and Hadfield, R. H. (2021) Superconducting photon detectors. Contemporary Physics, 62(2), pp. 69-91. (doi: 10.1080/00107514.2022.2043596)
Zhang, W., Al-Khalidi, A. , Figueiredo, J., Al-Taai, Q. R. A. , Wasige, E. and Hadfield, R. H. (2021) Analysis of excitability in resonant tunneling diode-photodetectors. Nanomaterials, 11(6), 1590. (doi: 10.3390/nano11061590)
Hadfield, R. H. (2020) Superfast photon counting. Nature Photonics, 14(4), pp. 201-202. (doi: 10.1038/s41566-020-0614-0)
Prabhakar, S. et al. (2020) Two-photon quantum interference and entanglement at 2.1 μm. Science Advances, 6(13), eaay5195. (doi: 10.1126/sciadv.aay5195)
Taylor, G. G., Morozov, D. , Gemmell, N., Erotokritou, K., Miki, S., Terai, H. and Hadfield, R. (2019) Photon counting LIDAR at 2.3μm wavelength with superconducting nanowires. Optics Express, 27, 38147. (doi: 10.1364/OE.27.038147)
Miki, S., Miyajima, S., Yabuno, M., Yamashita, T., Yamamoto, T., Imoto, N., Ikuta, R., Kirkwood, R. A., Hadfield, R. H. and Terai, H. (2019) Timing jitter characterization of the SFQ coincidence circuit by optically time-controlled signals from SSPDs. IEEE Transactions on Applied Superconductivity, 29(5), 1302104. (doi: 10.1109/TASC.2019.2906258)
Orchin, G.J. et al. (2019) Niobium diselenide superconducting photodetectors. Applied Physics Letters, 114(25), 251103. (doi: 10.1063/1.5097389)
Tsimvrakidis, K., Gemmell, N. R., Erotokritou, K., Miki, S., Yabuno, M., Yamashita, T., Terai, H. and Hadfield, R. H. (2019) Enhanced optics for time-resolved singlet oxygen luminescence detection. IEEE Journal of Selected Topics in Quantum Electronics, 25(1), 7000107. (doi: 10.1109/JSTQE.2018.2836962)
Erotokritou, K., Heath, R. M. , Taylor, G. G., Tian, C., Banerjee, A., Casaburi, A. , Natarajan, C. M., Miki, S., Terai, H. and Hadfield, R. H. (2018) Nano-optical photoresponse mapping of superconducting nanowires with enhanced near infrared absorption. Superconductor Science and Technology, 31(12), 125012. (doi: 10.1088/1361-6668/aae4bb)
Morozov, D. , Doyle, S. M., Banerjee, A., Brien, T. L.R., Hemakumara, D., Thayne, I. G. , Wood, K. and Hadfield, R. H. (2018) Design and characterisation of titanium nitride sub-arrays of kinetic inductance detectors for passive terahertz imaging. Journal of Low Temperature Physics, 193(3-4), pp. 196-202. (doi: 10.1007/s10909-018-2023-z)
Banerjee, A., Heath, R. M. , Morozov, D. , Hemakumara, D., Nasti, U., Thayne, I. and Hadfield, R. H. (2018) Optical properties of refractory metal based thin films. Optical Materials Express, 8(8), pp. 2072-2088. (doi: 10.1364/OME.8.002072)
Joshi, S. K. et al. (2018) Space QUEST mission proposal: experimentally testing decoherence due to gravity. New Journal of Physics, 20(6), 063016. (doi: 10.1088/1367-2630/aac58b)
Casaburi, A. , Heath, R.M. , Cristiano, R., Ejrnaes, M., Zen, N., Ohkubo, M. and Hadfield, R.H. (2018) Integrated Joule switches for the control of current dynamics in parallel superconducting strips. Superconductor Science and Technology, 31(6), 06LT01. (doi: 10.1088/1361-6668/aabcfd)
Miki, S., Miyajima, S., Yabuno, M., Yamashita, T., Yamamoto, T., Imoto, N., Ikuta, R., Kirkwood, R.A., Hadfield, R.H. and Terai, H. (2018) Superconducting coincidence photon detector with short timing jitter. Applied Physics Letters, 112, 262601. (doi: 10.1063/1.5037254)
Gemmell, N. R. et al. (2017) A miniaturized 4 K platform for superconducting infrared photon counting detectors. Superconductor Science and Technology, 30(11), 11LT01. (doi: 10.1088/1361-6668/aa8ac7)
Santagati, R. et al. (2017) Silicon photonic processor of two-qubit entangling quantum logic. Journal of Optics, 19(11), 114006. (doi: 10.1088/2040-8986/aa8d56)
Banerjee, A., Baker, L. J., Doye, A., Nord, M., Heath, R. M. , Erotokritou, K., Bosworth, D., Barber, Z. H., MacLaren, I. and Hadfield, R. H. (2017) Characterisation of amorphous molybdenum silicide (MoSi) superconducting thin films and nanowires. Superconductor Science and Technology, 30(8), 084010. (doi: 10.1088/1361-6668/aa76d8)
Piekarek, M. et al. (2017) High-extinction ratio integrated photonic filters for silicon quantum photonics. Optics Letters, 42(4), pp. 815-818. (doi: 10.1364/OL.42.000815) (PMID:28198872)
Gemmell, N. R., McCarthy, A., Kim, M. M., Veilleux, I., Zhu, T. C., Buller, G. S., Wilson, B. C. and Hadfield, R. H. (2017) A compact fiber-optic probe-based singlet oxygen luminescence detection system. Journal of Biophotonics, 10(2), pp. 320-326. (doi: 10.1002/jbio.201600078) (PMID:27455426) (PMCID:PMC5266677)
Sibson, P. et al. (2017) Chip-based quantum key distribution. Nature Communications, 8, 13984. (doi: 10.1038/ncomms13984) (PMID:28181489) (PMCID:PMC5309763)
Kim, M. M., Penjweini, R., Gemmell, N. R., Veilleux, I., McCarthy, A., Buller, G. S., Hadfield, R. H. , Wilson, B. C. and Zhu, T. C. (2016) A comparison of singlet oxygen explicit dosimetry (SOED) and singlet oxygen luminescence dosimetry (SOLD) for photofrin-mediated photodynamic therapy. Cancers, 8(12), p. 109. (doi: 10.3390/cancers8120109) (PMID:27929427)
Al-Khuzheyri, R. et al. (2016) Resonance fluorescence from a telecom-wavelength quantum dot. Applied Physics Letters, 109(16), 163104. (doi: 10.1063/1.4965845)
Yamashita, T., Waki, K., Miki, S., Kirkwood, R. A., Hadfield, R. H. and Terai, H. (2016) Superconducting nanowire single-photon detectors with non-periodic dielectric multilayers. Scientific Reports, 6, p. 35240. (doi: 10.1038/srep35240) (PMID:27775712) (PMCID:PMC5076433)
Heath, R. , Tanner, M. G., Kirkwood, R. A., Miki, S., Warburton, R. J. and Hadfield, R. H. (2016) A tunable fiber-coupled optical cavity for agile enhancement of detector absorption. Journal of Applied Physics, 120(11), 113101. (doi: 10.1063/1.4962456)
Li, J. et al. (2016) Nano-optical single-photon response mapping of waveguide integrated molybdenum silicide (MoSi) superconducting nanowires. Optics Express, 24(13), pp. 13931-13938. (doi: 10.1364/OE.24.013931) (PMID:27410555)
Wang, J. et al. (2016) Chip-to-chip quantum photonic interconnect by path-polarization interconversion. Optica, 3(4), pp. 407-413. (doi: 10.1364/OPTICA.3.000407)
Aspden, R. et al. (2015) Photon-sparse microscopy: visible light imaging using infrared illumination. Optica, 2(12), pp. 1049-1052. (doi: 10.1364/OPTICA.2.001049)
Casaburi, A. , Heath, R.M. , Ejrnaes, M., Nappi, C., Cristiano, R. and Hadfield, R.H. (2015) Experimental evidence of photoinduced vortex crossing in current carrying superconducting strips. Physical Review B, 92(21), 214512. (doi: 10.1103/PhysRevB.92.214512)
Yu, L. et al. (2015) Two-photon interference at telecom wavelengths for time-bin-encoded single photons from quantum-dot spin qubits. Nature Communications, 6, 8955. (doi: 10.1038/ncomms9955) (PMID:26597223) (PMCID:PMC4673878)
Bosworth, D., Sahonta, S.-L., Hadfield, R.H. and Barber, Z.H. (2015) Amorphous molybdenum silicon superconducting thin films. AIP Advances, 5(8), 087106. (doi: 10.1063/1.4928285)
Heath, R. M. , Tanner, M. G., Drysdale, T. D., Miki, S., Giannini, V., Maier, S. A. and Hadfield, R. H. (2015) Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors. Nano Letters, 15(2), pp. 819-822. (doi: 10.1021/nl503055a) (PMID:25575021)
Wang, J. et al. (2014) Gallium arsenide (GaAs) quantum photonic waveguide circuits. Optics Communications, 327, pp. 49-55. (doi: 10.1016/j.optcom.2014.02.040)
Heath, R. M. , Tanner, M. G., Casaburi, A. , Webster, M. G., San Emeterio Alvarez, L., Jiang, W., Barber, Z. H., Warburton, R. J. and Hadfield, R. H. (2014) Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector. Applied Physics Letters, 104(6), 063503. (doi: 10.1063/1.4865199)
Casaburi, A. , Heath, R.M. , Tanner, M.G., Cristiano, R., Ejrnaes, M., Nappi, C. and Hadfield, R. (2014) Parallel superconducting strip-line detectors: reset behaviour in the single-strip switch regime. Superconductor Science and Technology, 27(4), 044029. (doi: 10.1088/0953-2048/27/4/044029)
Silverstone, J.W. et al. (2014) On-chip quantum interference between silicon photon-pair sources. Nature Photonics, 8(2), pp. 104-108. (doi: 10.1038/nphoton.2013.339)
Tanner, M. G., Makarov, V. and Hadfield, R. H. (2014) Optimised quantum hacking of superconducting nanowire single-photon detectors. Optics Express, 22(6), pp. 6734-6748. (doi: 10.1364/OE.22.006734)
McCarthy, A., Krichel, N.J., Gemmell, N. R., Ren, X., Tanner, M.G., Dorenbos, S.N., Zwiller, V., Hadfield, R. and Buller, G.S. (2013) Kilometer-range, high resolution depth imaging via 1560 nm wavelength single-photon detection. Optics Express, 21(7), pp. 8904-8915. (doi: 10.1364/OE.21.008904)
Gemmell, N. R., McCarthy, A., Liu, B., Tanner, M.G., Dorenbos, S.D., Zwiller, V., Patterson, M.S., Buller, G.S., Wilson, B.C. and Hadfield, R.H. (2013) Singlet oxygen luminescence detection with a fiber-coupled superconducting nanowire single-photon detector. Optics Express, 21(4), pp. 5005-5013. (doi: 10.1364/OE.21.005005)
Natarajan, C.M., Zhang, L., Coldenstrodt-Ronge, H., Donati, G., Dorenbos, S.N., Zwiller, V., Walmsley, I.A. and Hadfield, R. (2013) Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths. Optics Express, 21(1), pp. 893-902. (doi: 10.1364/OE.21.000893)
Burenkov, V., Xu, H., Qi, B., Hadfield, R. and Lo, H.-K. (2013) Investigations of afterpulsing and detection efficiency recovery in superconducting nanowire single-photon detectors. Journal of Applied Physics, 113(21), p. 213102. (doi: 10.1063/1.4807833)
Casaburi, A. , Heath, R.M. , Tanner, M.G., Cristiano, R., Ejrnaes, M., Nappi, C. and Hadfield, R.H. (2013) Current distribution in a parallel configuration superconducting strip-line detector. Applied Physics Letters, 103(1), 013503. (doi: 10.1063/1.4813087)
De Greve, K. et al. (2013) Complete tomography of a high-fidelity solid-state entangled spin–photon qubit pair. Nature Communications, 4, (doi: 10.1038/ncomms3228)
Tanner, M.G., Alvarez, L.S.E., Jiang, W., Warburton, R.J., Barber, Z.H. and Hadfield, R.H. (2012) A superconducting nanowire single photon detector on lithium niobate. Nanotechnology, 23(50), p. 505201. (doi: 10.1088/0957-4484/23/50/505201)
Natarajan, C.M., Tanner, M.G. and Hadfield, R. (2012) Superconducting nanowire single-photon detectors: physics and applications. Superconductor Science and Technology, 25(6), 063001. (doi: 10.1088/0953-2048/25/6/063001)
Dyer, S.D., Tanner, M.G., Baek, B., Hadfield, R. and Nam, S.W. (2012) Analysis of a distributed fiber-optic temperature sensor using single-photon detectors. Optics Express, 20(4), p. 3456. (doi: 10.1364/OE.20.003456)
Bonneau, D. et al. (2012) Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits. New Journal of Physics, 14(4), 045003. (doi: 10.1088/1367-2630/14/4/045003)
Bonneau, D., Lobino, M., Jiang, P., Natarajan, C.M., Tanner, M.G., Hadfield, R.H. , Dorenbos, S.N., Zwiller, V., Thompson, M.G. and O'Brien, J.L. (2012) Fast Path and polarization manipulation of telecom wavelength single photons in lithium niobate waveguide devices. Physical Review Letters, 108(5), 053601. (doi: 10.1103/PhysRevLett.108.053601)
De Greve, K. et al. (2012) Quantum-dot spin–photon entanglement via frequency downconversion to telecom wavelength. Nature, 491(7424), pp. 421-425. (doi: 10.1038/nature11577)
Prechtel, J.H., Dalgarno, P.A., Hadfield, R. , McFarlane, J., Badolato, A., Petroff, P.M. and Warburton, R.J. (2012) Fast electro-optics of a single self-assembled quantum dot in a charge-tunable device. Journal of Applied Physics, 111(4), 043112. (doi: 10.1063/1.3687375)
Gerrits, T. et al. (2011) Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths. Optics Express, 19(24), p. 24434. (doi: 10.1364/OE.19.024434)
Clarke, P.J. et al. (2011) Analysis of detector performance in a gigahertz clock rate quantum key distribution system. New Journal of Physics, 13(7), 075008. (doi: 10.1088/1367-2630/13/7/075008)
Lobino, M. et al. (2011) Correlated photon-pair generation in a periodically poled MgO doped stoichiometric lithium tantalate reverse proton exchanged waveguide. Applied Physics Letters, 99(8), 081110. (doi: 10.1063/1.3628328)
O’Connor, J.A., Tanner, M.G., Natarajan, C.M., Buller, G.S., Warburton, R.J., Miki, S., Wang, Z., Nam, S.W. and Hadfield, R.H. (2011) Spatial dependence of output pulse delay in a niobium nitride nanowire superconducting single-photon detector. Applied Physics Letters, 98(20), p. 201116. (doi: 10.1063/1.3581054)
Tanner, M. G., Dyer, S. D., Baek, B., Hadfield, R. H. and Woo Nam, S. W. (2011) High-resolution single-mode fiber-optic distributed Raman sensor for absolute temperature measurement using superconducting nanowire single-photon detectors. Applied Physics Letters, 99(20), p. 201110. (doi: 10.1063/1.3656702)
Xiong, C. et al. (2011) Generation of correlated photon pairs in a chalcogenide As2S3 waveguide. Applied Physics Letters, 98(5), 051101. (doi: 10.1063/1.3549744)
Gong, Y. et al. (2010) Linewidth narrowing and Purcell enhancement in photonic crystal cavities on an Er-doped silicon nitride platform. Optics Express, 18(3), p. 2601. (doi: 10.1364/OE.18.002601)
Collins, R.J., Hadfield, R. and Buller, G.S. (2010) Commentary: new developments in single photon detection in the short wavelength infrared regime. Journal of Nanophotonics, 4(1), 040301. (doi: 10.1117/1.3314890)
Dorenbos, S.N. et al. (2010) Position controlled nanowires for infrared single photon emission. Applied Physics Letters, 97(17), p. 171106. (doi: 10.1063/1.3506499)
Natarajan, C.M., Peruzzo, A., Miki, S., Sasaki, M., Wang, Z., Baek, B., Nam, S., Hadfield, R.H. and O’Brien, J.L. (2010) Operating quantum waveguide circuits with superconducting single-photon detectors. Applied Physics Letters, 96(21), p. 211101. (doi: 10.1063/1.3413948)
Tanner, M.G. et al. (2010) Enhanced telecom wavelength single-photon detection with NbTiN superconducting nanowires on oxidized silicon. Applied Physics Letters, 96(22), p. 221109. (doi: 10.1063/1.3428960)
Rosenberg, D. et al. (2009) Practical long-distance quantum key distribution system using decoy levels. New Journal of Physics, 11(4), 045009. (doi: 10.1088/1367-2630/11/4/045009)
Hadfield, R.H. (2009) Single-photon detectors for optical quantum information applications. Nature Photonics, 3(12), pp. 696-705. (doi: 10.1038/nphoton.2009.230)
McFarlane, J., Dalgarno, P.A., Gerardot, B.D., Hadfield, R.H. , Warburton, R.J., Karrai, K., Badolato, A. and Petroff, P.M. (2009) Gigahertz bandwidth electrical control over a dark exciton-based memory bit in a single quantum dot. Applied Physics Letters, 94(9), 093113. (doi: 10.1063/1.3086461)
Stevens, M.J., Hadfield, R.H. , Gerrits, T., Clement, T.S., Mirin, R.P. and Nam, S.W. (2009) Infrared wavelength-dependent optical characterization of NbN nanowire superconducting single-photon detectors. Journal of Modern Optics, 56(2-3), pp. 358-363. (doi: 10.1080/09500340802322426)
Ursin, R. et al. (2009) Space-quest, experiments with quantum entanglement in space. Europhysics News, 40(3), pp. 26-29. (doi: 10.1051/epn/2009503)
Serrels, K.A., Ramsay, E., Dalgarno, P.A., Gerardot, B., O'Connor, J., Hadfield, R.H. , Warburton, R.J. and Reid, D.T. (2008) Solid immersion lens applications for nanophotonic devices. Journal of Nanophotonics, 2(1), 021854. (doi: 10.1117/1.3068652)
Honjo, T. et al. (2008) Long-distance entanglement-based quantum key distribution over optical fiber. Optics Express, 16(23), pp. 19118-19126. (doi: 10.1364/OE.16.019118)
Chen, J., Altepeter, J.B., Medic, M., Lee, K.F., Gokden, B., Hadfield, R.H. , Nam, S.W. and Kumar, P. (2008) Demonstration of a quantum controlled-NOT gate in the telecommunications band. Physical Review Letters, 100(13), p. 133603. (doi: 10.1103/PhysRevLett.100.133603)
Miki, S., Fujiwara, M., Sasaki, M., Baek, B., Miller, A.J., Hadfield, R.H. , Nam, S.W. and Wang, Z. (2008) Large sensitive-area NbN nanowire superconducting single-photon detectors fabricated on single-crystal MgO substrates. Applied Physics Letters, 92(6), 061116. (doi: 10.1063/1.2870099)
Rowe, M.A., Gansen, E.J., Greene, M.B., Rosenberg, D., Harvey, T.E., Su, M.Y., Hadfield, R.H. , Nam, S.W. and Mirin, R.P. (2008) Designing high electron mobility transistor heterostructures with quantum dots for efficient, number-resolving photon detection. Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 26(3), p. 1174. (doi: 10.1116/1.2837839)
Gansen, E.J., Rowe, M.A., Greene, M.B., Rosenberg, D., Harvey, T.E., Su, M.Y., Hadfield, R.H. , Nam, S.W. and Mirin, R.P. (2007) Photon-number-discriminating detection using a quantum-dot, optically gated, field-effect transistor. Nature Photonics, 1(10), pp. 585-588. (doi: 10.1038/nphoton.2007.173)
Warburton, R.E., McCarthy, A., Wallace, A.M., Hernandez-Marin, S., Hadfield, R. , Nam, S.W. and Buller, G.S. (2007) Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength. Optics Letters, 32(15), pp. 2266-2268. (doi: 10.1364/OL.32.002266)
Liang, C., Lee, K.F., Medic, M., Kumar, P., Hadfield, R. and Nam, S.W. (2007) Characterization of fiber-generated entangled photon pairs with superconducting single-photon detectors. Optics Express, 15(3), pp. 1322-1327. (doi: 10.1364/OE.15.001322)
Collins, R.J., Hadfield, R.H. , Fernandez, V., Nam, S.W. and Buller, G.S. (2007) Low timing jitter detector for gigahertz quantum key distribution. Electronics Letters, 43(3), pp. 180-182. (doi: 10.1049/el:20073748)
Gansen, E.J., Rowe, M.A., Greene, M.B., Rosenberg, D., Harvey, T.E., Su, M.Y., Hadfield, R.H. , Nam, S.W. and Mirin, R.P. (2007) Operational analysis of a quantum dot optically gated field-effect transistor as a single-photon detector. IEEE Journal of Selected Topics in Quantum Electronics, 13(4), pp. 967-977. (doi: 10.1109/JSTQE.2007.902843)
Hadfield, R.H. , Dalgarno, P.A., O’Connor, J.A., Ramsay, E., Warburton, R.J., Gansen, E.J., Baek, B., Stevens, M.J., Mirin, R.P. and Nam, S.W. (2007) Submicrometer photoresponse mapping of nanowire superconducting single-photon detectors. Applied Physics Letters, 91(24), p. 241108. (doi: 10.1063/1.2824384)
Hadfield, R.H. , Stevens, M.J., Mirin, R.P. and Nam, S.W. (2007) Single-photon source characterization with twin infrared-sensitive superconducting single-photon detectors. Journal of Applied Physics, 101(10), p. 103104. (doi: 10.1063/1.2717582)
Takesue, H., Nam, S.W., Zhang, Q., Hadfield, R.H. , Honjo, T., Tamaki, K. and Yamamoto, Y. (2007) Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors. Nature Photonics, 1(6), pp. 343-348. (doi: 10.1038/nphoton.2007.75)
Hadfield, R.H. , Habif, J.L., Schlafer, J., Schwall, R.E. and Nam, S.W. (2006) Quantum key distribution at 1550 nm with twin superconducting single-photon detectors. Applied Physics Letters, 89(24), p. 241129. (doi: 10.1063/1.2405870)
Jaspan, M.A., Habif, J.L., Hadfield, R.H. and Nam, S.W. (2006) Heralding of telecommunication photon pairs with a superconducting single photon detector. Applied Physics Letters, 89(3), 031112. (doi: 10.1063/1.2219411)
Rowe, M.A., Gansen, E.J., Greene, M., Hadfield, R.H. , Harvey, T.E., Su, M.Y., Nam, S.W., Mirin, R.P. and Rosenberg, D. (2006) Single-photon detection using a quantum dot optically gated field-effect transistor with high internal quantum efficiency. Applied Physics Letters, 89(25), p. 253505. (doi: 10.1063/1.2403907)
Stevens, M.J., Hadfield, R.H. , Schwall, R.E., Nam, S.W. and Mirin, R.P. (2006) Quantum dot single photon sources studied with superconducting single photon detectors. IEEE Journal of Selected Topics in Quantum Electronics, 12(6), pp. 1255-1268. (doi: 10.1109/JSTQE.2006.885088)
Stevens, M.J., Hadfield, R.H. , Schwall, R.E., Nam, S.W., Mirin, R.P. and Gupta, J.A. (2006) Fast lifetime measurements of infrared emitters using a low-jitter superconducting single-photon detector. Applied Physics Letters, 89(3), 031109. (doi: 10.1063/1.2221516)
Hadfield, R. , Stevens, M.J., Gruber, S.S., Miller, A.J., Schwall, R.E., Mirin, R.P. and Nam, S.W. (2005) Single photon source characterization with a superconducting single photon detector. Optics Express, 13(26), pp. 10846-10853. (doi: 10.1364/OPEX.13.010846)
Hadfield, R.H. , Miller, A.J., Nam, S.W., Kautz, R.L. and Schwall, R.E. (2005) Low-frequency phase locking in high-inductance superconducting nanowires. Applied Physics Letters, 87(20), p. 203505. (doi: 10.1063/1.2130525)
Edited Books
Hadfield, R. H. and Johansson, G. (Eds.) (2016) Superconducting Devices in Quantum Optics. Series: Quantum science and technology. Springer. ISBN 9783319240893
Conference or Workshop Item
Seferai, V. et al. (2023) Recent Material Developments for Superconducting Quantum Circuits. 2023 Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC & ICMC 2023), Honolulu, HI, USA, 09-13 Jul 2023.
Foshat, P. et al. (2022) Nitride-based superconducting coplanar waveguide resonator with an internal quality factor above one million. 35th International Symposium on Superconductivity (ISS2022), Nagoya, Japan, 29 November – 1 December 2022.
Paul, J. , Weides, M. and Hadfield, R. (2022) Fabrication of Superconducting-Devices for Quantum Technologies. James Watt Nanofabrication Centre (JWNC) Mini Conference, Glasgow, UK, 17 May 2022.
Seferai, V. et al. (2022) Tantalum on Sapphire and Silicon Substrates for Superconducting Quantum Circuits. American Physical Society March Meeting 2022, Chicago, IL, USA, 14-18 Mar 2022.
Baity, P. G. et al. (2021) Strong Magnon-Photon Coupling On-Chip for YIG in the Zero-Temperature Limit. American Physical Society March Meeting 2021, Online, 15-19 Mar 2021.
Orchin, G., Paul, J. , Nasti, U., Erotokritou, K., Sorel, M. , Heath, R. M. , Slater, B., Sahin, D., Barret, J. and Hadfield, R. H. (2019) Waveguide Integrated SNSPD Arrays for Scalable Quantum Photonics. 2019 14th European Conference on Applied Superconductivity (EUCAS), Glasgow, UK, 01-05 Sep 2019.
Paul, J. et al. (2019) Superconducting Nanowire-Single Photon Detectors on Waveguide Circuits for Secure Quantum Communications. Superconducting Quantum Devices 2019 (SQD2019), Glasgow, UK, 05-06 Sep 2019.
Paul, J. et al. (2018) Integrated Superconducting Nanowire Single Photon Detectors for Scalable Silicon Quantum Photonics. Photon 2018 Conference, Birmingham, UK, 3-6 Sep 2018.
Wisaksono, A. , Pizzone, A. , Gemmell, N. R., Younger, P. L. and Hadfield, R. H. (2017) Direct Downhole Temperature Measurement and Real Time Pressure -Enthalpy Model Through Photon Counting Fibre Optic Temperature Sensing. 42nd Workshop on Geothermal Reservoir Engineering, Stanford, CA, USA, 13-15 Feb 2017.
Conference Proceedings
Foshat, P., Danilin, S. , Baity, P. , Seferai, V. , Mukhanov, O., Hutchings, M., Hadfield, R. , Imran, M. , Weides, M. and Delfanazari, K. (2022) Microwave Photonic Losses in Niobium Nitride-based Superconducting Resonator Array. In: Applied Superconductivity Conference (ASC 22), Honolulu, Hawaii, 23-28 October 2022, (Accepted for Publication)
Kim, M. M., Penjweini, R., Gemmell, N. R., Veilleux, I., McCarthy, A., Buller, G., Hadfield, R. H. , Wilson, B. C. and Zhu, T. C. (2016) A Feasibility Study of Singlet Oxygen Explicit Dosmietry (SOED) of PDT by Intercomparison with a Singlet Oxygen Luminescence Dosimetry (SOLD) System. In: Optical Methods for Tumor Treatment and Detection: Mechanisms and Techniques in Photodynamic Therapy XXV, San Francisco, CA, USA, 13 Feb 2016, p. 969406. (doi: 10.1117/12.2213236)
Meehan, K., Hadfield, R. and Phillips, A. (2015) A Simple Hands-on Experiment for First-year Undergraduates that Connects the Electrical and Thermal Properties of Metals. In: 2015 ASEE Annual Conference and Exposition, Seattle, WA, USA, 14-17 June 2015, 26.109.1-26.109.16. (doi: 10.18260/p.23450)
Casaburi, A. , Pizzone, A. and Hadfield, R. H. (2014) Large Area Superconducting Nanowire Single Photon Detector Arrays. In: Fotonica AEIT Italian Conference on Photonics Technologies, Naples, Italy, 12-14 May 2014, pp. 1-4. ISBN 9788887237184 (doi: 10.1109/Fotonica.2014.6843851)
Grants
Research Funding Support
Engineering and Physical Sciences Research Council (EPSRC)
EP/S026428/1 Single Photons - Expanding the Spectrum (SPEXS)
EPSRC Programme Grant led by Professor Gerald Buller, Heriot-Watt University, 2020-2025
EP/T00097X/1 QuantIC - The UK Quantum Technology Hub in Quantum Imaging
EPSRC Quantum Technology Hub led by Professor Miles Padgett at the University of Glasgow, Phase 2, 2019-2024
EP/T001011/1 The EPSRC Quantum Communications Hub
EPSRC Quantum Technology Hub led by Professor Tim Spiller at the University of York, Phase 2, 2019-2024
STFC
ST/T006331/1 Quantum Interferometry for New Physics
Quantum Technology for Fundamental Physics Award led by Professor Hartmut Grote at the University of Cardiff, 2020-2024
US National Institutes of Health
Singlet oxgygen dosimetry for photodynamic therapy RO1 grant in partnership with Prof Tim Zhu University of Pennsylvania, USA 2022-2025
National Research Foundation of Korea (South Korea)
JOSEON Joint research centre in Superconducting Electro-Optic technology for Near-infrared single photon counting
Korea-Europe Quantum Science and Technology Collaboration Centre jointly with Professor Yonuk Chong, Sung Kyung Kwan University (SKKU), South Korea 2024-2028
Previous support
Breakthrough Starshot Foundation
SALTIRE - Scottish Alliance for Laser Transceiver development for Interstellar Reconnaissance 2021-2022
EC Horizon2020 FETOPEN
Royal Society of London/Leverhulme Trust
Royal Society Leverhulme Trust Senior Research Fellowship 2018-19
European Research Council (ERC)
IRIS Infrared imaging and sensing: the single photon frontier
ERC Consolidator Grant, PI Professor Robert Hadfield, 2015-2019
Engineering and Physical Sciences Research Council (EPSRC)
EP/M01326Z/1 UK Quantum Technology Hub in Quantum Enhanced Imaging
EPSRC Quantum Technology Hub led by Professor Miles Padgett at the University of Glasgow, 2014-2019
EP/L024020/1 Engineering photonic quantum technologies
EPSRC Programme Grant in collaboration with Professor Jeremy O'Brien at the University of Bristol, 2014-2019
Partnership resource projects with the QuantIC and QComm quantum technology hubs 2017-2019
Royal Society of London
Ultrafast infrared single-photon detectors
Royal Society University Research Fellowship 2007-2014
Other UK: EPSRC, NPL, Nuffield Foundation, SU2P, SUPA, Innovate UK
International: EF7, EOARD
Supervision
Applications
Applications for research positions at all levels are welcomed: undergraduate internships, PhD research, postdoctoral fellowships and scientific visitors.
Please contact Professor Hadfield <robert.hadfield@glasgow.ac.uk>
Full scholarships for UK candidates are awarded competitively through the James Watt School of Engineering PhD Application Call closing 31st January 2024. A further round is expected in May/June 2024. Interested candidates should contact Prof Hadfield well in advance for support in submitting a full application. We work closely with a range of companies, and industrial sponsorship can be arranged for suitable candidates.
Professor Hadfield's current team:
Postdoctoral Reseachers
Postgraduate Researchers (1st supervisor)
- Ciaran Lennon (PhD)
- Robert Graham (PhD)
- Mahmoud Ahtaiba (PhD)
- Bernard Cooper (PhD)
- Daniel Kuznesof (PhD
- Nidhi Choudhary (PhD)
- Max Littlewood (PhD)
Postgraduate Researchers (2nd supervisor)
- Ferreira Barbosa, Joao
Single Flux Quantum Control Chip for Integrated Quantum Circuits - Fu, Cong
Establishing real-time processing for experiments with superconducting qubits - Kuznesof, Daniel
Mid-infrared quantum sensing with superconducting nanowires
To date I have supervised 13 PhD and 1 EngD research students to completion. I have also mentored 10 postdoctoral researchers.
Former members of my group have gone on to rewarding positions in academia, national labs and industry.
Teaching
Teaching 2023/24
Mentor for fourth year integrated system design project (ISDP4 Module/ENG 4085)
Convenor/Lecturer for first year Engineering Materials (Materials I: ENG 1033) including Active Learning in the James McCune Smith Learning & Teaching Hub
BEng and MSc project supervision
Professional activities & recognition
Prizes, awards & distinctions
- 2019: James Joule Medal for Applied Physics (Institute of Physics)
- 2012: J&E Hall Gold Medal (Institute of Refrigeration)
- 2013: Brian Pippard Prize (Institute of Physics)
Research fellowships
- 2018 - 2019: Royal Society Leverhulme Trust Senior Research Fellow
- 2007 - 2014: Royal Society University Research Fellow
Editorial boards
- 2019: Optica
- 2010: Superconductor Science and Technology
Professional & learned societies
- 2019: Fellow, Royal Society of Edinburgh
- 2016: Fellow, Optical Society of America/Optica
- 2015: Fellow, Institution of Engineering and Technology
- 2010: Fellow, Institute of Physics
- 2013: Senior Member, IEEE
- 2012: Senior Member, SPIE
Research datasets
2022
Taylor, G. G., Mackenzie, E., Korzh, B., Morozov, D. , Bumble, B., Beyer, A. D., Allmaras, J. P., Shaw, M. and Hadfield, R. (2022) Mid-infrared timing jitter of superconducting nanowire single-photon detectors. [Data Collection]
2021
Dada, A. , Kaniewski, J., Gawith, C., Lavery, M. , Hadfield, R. , Faccio, D. and Clerici, M. (2021) Near-maximal two-photon entanglement for optical quantum communication at 2.1 μm. [Data Collection] (Unpublished)
Taylor, G., Morozov, D. , Lennon, C., Barry, P. S., Sheagren, C. and Hadfield, R. (2021) Infrared single-photon sensitivity in atomic layer deposited superconducting nanowires. [Data Collection]
2020
Taylor, G., Morozov, D. , Gemmell, N. R., Erotokritou, K., Miki, S., Terai, H. and Hadfield, R. (2020) Photon counting LIDAR at 2.3µm wavelength with superconducting nanowires. [Data Collection]
2019
Hadfield, R. , Thayne, I., Morozov, D. , Heath, R., Banerjee, A., Nasti, U. and Hemakumara, D. (2019) Optical properties of refractory metal based thin films. [Data Collection]
Prabhakar, S., Shields, T., Dada, A. , Ebrahim, M., Taylor, G., Morozov, D. , Erotokritou, K., Miki, S., Yabuno, M., Terai, H., Gawith, C., Kues, M., Caspani, L., Hadfield, R. and Clerici, M. (2019) Two-photon Quantum Interference and Entanglement at 2.1 μm. [Data Collection]
2018
Erotokritou, K., Heath, R., Taylor, G., Tian, C., Banerjee, A., Casaburi, A., Natarajan, C. M., Miki, S., Terai, H. and Hadfield, R. (2018) Nano-optical photoresponse mapping of superconducting nanowires with enhanced near infrared absorption. [Data Collection]
2016
Li, J., Kirkwood, R. A., Baker, L., Bosworth, D., Erotokritou, K., Banerjee, A., Heath, R., Natarajan, C., Barber, Z., Sorel, M. and Hadfield, R. (2016) Nano-optical single-photon response mapping of waveguide integrated molybdenum silicide (MoSi) superconducting nanowires. [Data Collection]
2015
Aspden, R., Gemmell, N. R., MORRIS, P., Tasca, D. S., MERTENS, L., Tanner, M. G., Kirkwood, R. A., Ruggeri, A., Tosi, A., Boyd, R., Buller, G. S., Hadfield, R. and Padgett, M. (2015) Photon-sparse microscopy: Visible light imaging using infrared illumination. [Data Collection]