Dr Stephen Webster
- Senior Lecturer (Physics & Astronomy)
telephone:
01413305884
email:
Stephen.Webster@glasgow.ac.uk
Institute for Gravitational Research, School of Physics and Astronomy, Kelvin Building, University of Glasgow, Glasgow, G12 8QQ
Research interests
My interest is in the application of lasers to fundamental research, quantum technology and industry.
I am a member of the LIGO Scientific Collaboration and take an active role in the UK's contribution to the A+ upgrade project, using optical simulation tools to re-design the LIGO detection chamber and implement a balanced homodyne detection scheme.
With industry, I collaborate with companies working in the photonics and quantum technology sectors, consulting on matters of optical design and novel approaches to the assembly of optical systems.
My previous experience includes the development of advanced products at a fast-growing laser company and R&D at the National Physical Laboratory specialising in optical frequency standards and ultra-stable lasers.
Publications
2024
Abac, A. G. et al. (2024) Ultralight vector dark matter search using data from the KAGRA O3GK run. Physical Review D, 110(4), 042001. (doi: 10.1103/PhysRevD.110.042001)
Abac, A. G. et al. (2024) Observation of gravitational waves from the coalescence of a 2.5–4.5 M ⊙ compact object and a neutron star. Astrophysical Journal Letters, 970(2), L34. (doi: 10.3847/2041-8213/ad5beb)
Abbott, R. et al. (2024) Search for gravitational-wave transients associated with magnetar bursts in advanced LIGO and advanced Virgo data from the third observing run. Astrophysical Journal, 966(1), 137. (doi: 10.3847/1538-4357/ad27d3)
Fletcher, C. et al. (2024) A joint Fermi-GBM and Swift-BAT analysis of gravitational-wave candidates from the third gravitational-wave observing run. Astrophysical Journal, 964(2), 149. (doi: 10.3847/1538-4357/ad1eed)
Abbott, R. et al. (2024) GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run. Physical Review D, 109(2), 022001. (doi: 10.1103/PhysRevD.109.022001)
2023
Abbott, R. et al. (2023) GWTC-3: Compact binary coalescences observed by LIGO and Virgo during the second part of the third observing run. Physical Review X, 13(4), 041039. (doi: 10.1103/PhysRevX.13.041039)
Abbott, R. et al. (2023) Search for gravitational waves associated with fast radio bursts detected by CHIME/FRB during the LIGO–Virgo observing run O3a. Astrophysical Journal, 955(2), 155. (doi: 10.3847/1538-4357/acd770)
Abbott, R. et al. (2023) Search for subsolar-mass black hole binaries in the second part of Advanced LIGO’s and Advanced Virgo’s third observing run. Monthly Notices of the Royal Astronomical Society, 524(4), pp. 5984-5992. (doi: 10.1093/mnras/stad588)
Abbott, R. et al. (2023) Open data from the third observing run of LIGO, Virgo, KAGRA and GEO. Astrophysical Journal Supplement Series, 267(2), 29. (doi: 10.3847/1538-4365/acdc9f)
Abbott, R. et al. (2023) Constraints on the cosmic expansion history from GWTC–3. Astrophysical Journal, 949(2), 76. (doi: 10.3847/1538-4357/ac74bb)
Abbott, R. et al. (2023) Population of merging compact binaries inferred using gravitational waves through GWTC-3. Physical Review X, 13(1), 011048. (doi: 10.1103/PhysRevX.13.011048)
2022
Abbott, R. et al. (2022) Model-based cross-correlation search for gravitational waves from the low-mass X-Ray binary Scorpius X-1 in LIGO O3 data. Astrophysical Journal Letters, 941(2), L30. (doi: 10.3847/2041-8213/aca1b0)
Abbott, R. et al. (2022) All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data. Physical Review D, 106(10), 102008. (doi: 10.1103/PhysRevD.106.102008)
Abbott, R. et al. (2022) Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data. Physical Review D, 106(6), 062002. (doi: 10.1103/PhysRevD.106.062002)
Abbott, R. et al. (2022) Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data. Physical Review D, 106(4), 042003. (doi: 10.1103/PhysRevD.106.042003)
Abbott, R. et al. (2022) Searches for gravitational waves from known pulsars at two harmonics in the second and third LIGO-Virgo observing runs. Astrophysical Journal, 935(1), 1. (doi: 10.3847/1538-4357/ac6acf)
Abbott, R. et al. (2022) Search for subsolar-mass binaries in the first half of Advanced LIGO’s and Advanced Virgo’s third observing run. Physical Review Letters, 129(6), 061104. (doi: 10.1103/PhysRevLett.129.061104)
Abbott, R. et al. (2022) Narrowband searches for continuous and long-duration transient gravitational waves from known pulsars in the LIGO-Virgo third observing run. Astrophysical Journal, 932(2), 133. (doi: 10.3847/1538-4357/ac6ad0)
Abbott, R. et al. (2022) All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO’s and Advanced Virgo’s first three observing runs. Physical Review D, 105(12), 122001. (doi: 10.1103/PhysRevD.105.122001)
Abbott, R. et al. (2022) First joint observation by the underground gravitational-wave detector, KAGRA, with GEO 600. Progress of Theoretical and Experimental Physics, 2022(6), 063F01. (doi: 10.1093/ptep/ptac073)
Abbott, R. et al. (2022) All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data. Physical Review D, 105(10), 102001. (doi: 10.1103/PhysRevD.105.102001)
Abbott, R. et al. (2022) Tests of general relativity with GWTC-3. Physical Review D, (Accepted for Publication)
Abbott, R. et al. (2022) Search for gravitational waves associated with gamma-ray bursts detected by Fermi and Swift during the LIGO–Virgo run O3b. Astrophysical Journal, 928(2), 186. (doi: 10.3847/1538-4357/ac532b)
Abbott, R. et al. (2022) Constraints on dark photon dark matter using data from LIGO’s and Virgo’s third observing run. Physical Review D, 105(6), 063030. (doi: 10.1103/PhysRevD.105.063030)
Abbott, R. et al. (2022) Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo. Astronomy and Astrophysics, 659, A84. (doi: 10.1051/0004-6361/202141452)
Abbott, R. et al. (2022) Search for continuous gravitational waves from 20 accreting millisecond x-ray pulsars in O3 LIGO data. Physical Review D, 105(2), 022002. (doi: 10.1103/PhysRevD.105.022002)
2021
Abbott, R. et al. (2021) All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run. Physical Review D, 104(12), 122004. (doi: 10.1103/PhysRevD.104.122004)
Abbott, R. et al. (2021) All-sky search for long-duration gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run. Physical Review D, 104(10), 102001. (doi: 10.1103/PhysRevD.104.102001)
2012
King, S. A., Godun, R. M., Webster, S. A., Margolis, H. S., Johnson, L. A. M., Szymaniec, K., Baird, P. E. G. and Gill, P. (2012) Absolute frequency measurement of the 2S1/2–2F7/2 electric octupole transition in a single ion of 171Yb+ with 10−15 fractional uncertainty. New Journal of Physics, 14, 013045. (doi: 10.1088/1367-2630/14/1/013045)
2011
Webster, S. and Gill, P. (2011) Force-insensitive optical cavity. Optics Letters, 36(18), pp. 3572-3574. (doi: 10.1364/OL.36.003572) (PMID:21931394)
2008
Webster, S. A., Oxborrow, M., Pugla, S., Millo, J. and Gill, P. (2008) Thermal-noise-limited optical cavity. Physical Review A: Atomic, Molecular and Optical Physics, 77(3), 033847. (doi: 10.1103/PhysRevA.77.033847)
2007
Webster, S. A., Oxborrow, M. and Gill, P. (2007) Vibration insensitive optical cavity. Physical Review A: Atomic, Molecular and Optical Physics, 75(1), 011801. (doi: 10.1103/PhysRevA.75.011801)
2004
Webster, S. A., Oxborrow, M. and Gill, P. (2004) Subhertz-linewidth Nd:YAG laser. Optics Letters, 29(13), (doi: 10.1364/OL.29.001497)
1998
Arlt, J. J., Marago, O., Webster, S., Hopkins, S. and Foot, C. J. (1998) A pyramidal magneto-optical trap as a source of slow atoms. Optics Communications, 157(1-6), pp. 303-309. (doi: 10.1016/S0030-4018(98)00499-4)
Articles
Abac, A. G. et al. (2024) Ultralight vector dark matter search using data from the KAGRA O3GK run. Physical Review D, 110(4), 042001. (doi: 10.1103/PhysRevD.110.042001)
Abac, A. G. et al. (2024) Observation of gravitational waves from the coalescence of a 2.5–4.5 M ⊙ compact object and a neutron star. Astrophysical Journal Letters, 970(2), L34. (doi: 10.3847/2041-8213/ad5beb)
Abbott, R. et al. (2024) Search for gravitational-wave transients associated with magnetar bursts in advanced LIGO and advanced Virgo data from the third observing run. Astrophysical Journal, 966(1), 137. (doi: 10.3847/1538-4357/ad27d3)
Fletcher, C. et al. (2024) A joint Fermi-GBM and Swift-BAT analysis of gravitational-wave candidates from the third gravitational-wave observing run. Astrophysical Journal, 964(2), 149. (doi: 10.3847/1538-4357/ad1eed)
Abbott, R. et al. (2024) GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run. Physical Review D, 109(2), 022001. (doi: 10.1103/PhysRevD.109.022001)
Abbott, R. et al. (2023) GWTC-3: Compact binary coalescences observed by LIGO and Virgo during the second part of the third observing run. Physical Review X, 13(4), 041039. (doi: 10.1103/PhysRevX.13.041039)
Abbott, R. et al. (2023) Search for gravitational waves associated with fast radio bursts detected by CHIME/FRB during the LIGO–Virgo observing run O3a. Astrophysical Journal, 955(2), 155. (doi: 10.3847/1538-4357/acd770)
Abbott, R. et al. (2023) Search for subsolar-mass black hole binaries in the second part of Advanced LIGO’s and Advanced Virgo’s third observing run. Monthly Notices of the Royal Astronomical Society, 524(4), pp. 5984-5992. (doi: 10.1093/mnras/stad588)
Abbott, R. et al. (2023) Open data from the third observing run of LIGO, Virgo, KAGRA and GEO. Astrophysical Journal Supplement Series, 267(2), 29. (doi: 10.3847/1538-4365/acdc9f)
Abbott, R. et al. (2023) Constraints on the cosmic expansion history from GWTC–3. Astrophysical Journal, 949(2), 76. (doi: 10.3847/1538-4357/ac74bb)
Abbott, R. et al. (2023) Population of merging compact binaries inferred using gravitational waves through GWTC-3. Physical Review X, 13(1), 011048. (doi: 10.1103/PhysRevX.13.011048)
Abbott, R. et al. (2022) Model-based cross-correlation search for gravitational waves from the low-mass X-Ray binary Scorpius X-1 in LIGO O3 data. Astrophysical Journal Letters, 941(2), L30. (doi: 10.3847/2041-8213/aca1b0)
Abbott, R. et al. (2022) All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data. Physical Review D, 106(10), 102008. (doi: 10.1103/PhysRevD.106.102008)
Abbott, R. et al. (2022) Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data. Physical Review D, 106(6), 062002. (doi: 10.1103/PhysRevD.106.062002)
Abbott, R. et al. (2022) Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data. Physical Review D, 106(4), 042003. (doi: 10.1103/PhysRevD.106.042003)
Abbott, R. et al. (2022) Searches for gravitational waves from known pulsars at two harmonics in the second and third LIGO-Virgo observing runs. Astrophysical Journal, 935(1), 1. (doi: 10.3847/1538-4357/ac6acf)
Abbott, R. et al. (2022) Search for subsolar-mass binaries in the first half of Advanced LIGO’s and Advanced Virgo’s third observing run. Physical Review Letters, 129(6), 061104. (doi: 10.1103/PhysRevLett.129.061104)
Abbott, R. et al. (2022) Narrowband searches for continuous and long-duration transient gravitational waves from known pulsars in the LIGO-Virgo third observing run. Astrophysical Journal, 932(2), 133. (doi: 10.3847/1538-4357/ac6ad0)
Abbott, R. et al. (2022) All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO’s and Advanced Virgo’s first three observing runs. Physical Review D, 105(12), 122001. (doi: 10.1103/PhysRevD.105.122001)
Abbott, R. et al. (2022) First joint observation by the underground gravitational-wave detector, KAGRA, with GEO 600. Progress of Theoretical and Experimental Physics, 2022(6), 063F01. (doi: 10.1093/ptep/ptac073)
Abbott, R. et al. (2022) All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data. Physical Review D, 105(10), 102001. (doi: 10.1103/PhysRevD.105.102001)
Abbott, R. et al. (2022) Tests of general relativity with GWTC-3. Physical Review D, (Accepted for Publication)
Abbott, R. et al. (2022) Search for gravitational waves associated with gamma-ray bursts detected by Fermi and Swift during the LIGO–Virgo run O3b. Astrophysical Journal, 928(2), 186. (doi: 10.3847/1538-4357/ac532b)
Abbott, R. et al. (2022) Constraints on dark photon dark matter using data from LIGO’s and Virgo’s third observing run. Physical Review D, 105(6), 063030. (doi: 10.1103/PhysRevD.105.063030)
Abbott, R. et al. (2022) Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo. Astronomy and Astrophysics, 659, A84. (doi: 10.1051/0004-6361/202141452)
Abbott, R. et al. (2022) Search for continuous gravitational waves from 20 accreting millisecond x-ray pulsars in O3 LIGO data. Physical Review D, 105(2), 022002. (doi: 10.1103/PhysRevD.105.022002)
Abbott, R. et al. (2021) All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run. Physical Review D, 104(12), 122004. (doi: 10.1103/PhysRevD.104.122004)
Abbott, R. et al. (2021) All-sky search for long-duration gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run. Physical Review D, 104(10), 102001. (doi: 10.1103/PhysRevD.104.102001)
King, S. A., Godun, R. M., Webster, S. A., Margolis, H. S., Johnson, L. A. M., Szymaniec, K., Baird, P. E. G. and Gill, P. (2012) Absolute frequency measurement of the 2S1/2–2F7/2 electric octupole transition in a single ion of 171Yb+ with 10−15 fractional uncertainty. New Journal of Physics, 14, 013045. (doi: 10.1088/1367-2630/14/1/013045)
Webster, S. and Gill, P. (2011) Force-insensitive optical cavity. Optics Letters, 36(18), pp. 3572-3574. (doi: 10.1364/OL.36.003572) (PMID:21931394)
Webster, S. A., Oxborrow, M., Pugla, S., Millo, J. and Gill, P. (2008) Thermal-noise-limited optical cavity. Physical Review A: Atomic, Molecular and Optical Physics, 77(3), 033847. (doi: 10.1103/PhysRevA.77.033847)
Webster, S. A., Oxborrow, M. and Gill, P. (2007) Vibration insensitive optical cavity. Physical Review A: Atomic, Molecular and Optical Physics, 75(1), 011801. (doi: 10.1103/PhysRevA.75.011801)
Webster, S. A., Oxborrow, M. and Gill, P. (2004) Subhertz-linewidth Nd:YAG laser. Optics Letters, 29(13), (doi: 10.1364/OL.29.001497)
Arlt, J. J., Marago, O., Webster, S., Hopkins, S. and Foot, C. J. (1998) A pyramidal magneto-optical trap as a source of slow atoms. Optics Communications, 157(1-6), pp. 303-309. (doi: 10.1016/S0030-4018(98)00499-4)
Teaching
Lectures
- Circuits and Systems PHYS4003
- Instruments for Optical and Radio Astronomy II (B) ASTRO4010
