Associate Professor Stephen Gibson
Areas of expertise
- Structural Chemistry And Spectroscopy 030606
- Atomic And Molecular Physics 020201
- Open Software 080306
- Quantum Physics Not Elsewhere Classified 020699
Research interests
Photodetachment, photodissociation, planetary atmospheres, aerosols, climate change.
Theory: Calculation of molecular spectra via numerical solutions to the coupled-channel Schroedinger equation
Publications
- Kono, M, He, Y, Lewis, B et al. 2020, 'Two-photon excitation of two Rydberg levels of O2 above 95 130 cm-1: Rotational-state dependence of predissociation linewidths', Journal of Quantitative Spectroscopy & Radiative Transfer, vol. 244, pp. 1-10.
- Hickstein, D, Gibson, S, Yurchak, R et al 2019, 'A direct comparison of high-speed methods for the numerical Abel transform', Review of Scientific Instruments, vol. 90, no. 6, pp. 1-9.
- Laws, B, Cavanagh, S, Lewis, B et al 2019, 'Wigner Near-Threshold Effects in the Photoelectron Angular Distribution of NO2-', Journal of Physical Chemistry A, vol. 123, no. 48, pp. 10418-10425.
- Lewis, B, Gibson, S, Stark, G et al 2018, 'Predissociation of the B Σu−3 state of S2: A coupled-channel model', Journal of Chemical Physics, vol. 148, no. 24, pp. 1-12.
- Stark, G, Herde, H, Lyons, J et al 2018, 'Fourier-transform-spectroscopic photoabsorption cross sections and oscillator strengths for the S2 BΣu−3−XΣg−3 system', Journal of Chemical Physics, vol. 148, no. 24, pp. 1-8.
- Laws, B, Cavanagh, S, Lewis, B et al. 2017, 'NOO Peroxy Isomer Exposed with Velocity-Map Imaging', Journal of Physical Chemistry Letters, vol. 8, no. 18, pp. 4397-4401.
- DeVine, J, Weichman, M, Laws, B et al. 2017, 'Encoding of vinylidene isomerization in its anion photoelectron spectrum', Science, vol. 358, no. 6361, pp. 336-339pp.
- Gascooke, J, Gibson, S & Lawrance, W 2017, 'A "circularisation" method to repair deformations and determine the centre of velocity map images', Journal of Chemical Physics, vol. 147, no. 1, pp. 13924-13924.
- Meier, R, Picone, J, Drob, D et al 2015, 'Remote sensing of the Earth limb by TIMED/GUVI: retrieval of thermospheric composition and temperature', Earth and Space Science, vol. 2, no. 1, pp. Pages i-ii, 1-37.
- Heays, A, Lewis, B, Gibson, S et al 2015, 'Indirect predissociation of highly excited singlet states of N2', International Conference on Dissociative Recombination: Theory, Experiment, and Applications, DR 2013, ed. Dulieu O.Dulieu O.Ro, EPJ Web of Conferences , Online, p. 03004.
- Heays, A, Ajello, J, Aguilar, A et al 2014, 'THE HIGH-RESOLUTION EXTREME-ULTRAVIOLET SPECTRUM OF N-2 BY ELECTRON IMPACT', Astrophysical Journal Supplement Series, vol. 211, no. 2, pp. 1-27.
- Heays, A, Visser, R, Gredel, R et al 2014, 'Isotope selective photodissociation of N2 by the interstellar radiation field and cosmic rays', Astronomy and Astrophysics, vol. 562, pp. A61.
- Gibson, S, Cavanagh, S, Lewis, B et al. 2014, 'Back to basics, the chemistry of aerosol formation, viewed with velocity-map imaging of photoelectrons', Optical Instrumentation for Energy and Environmental Applications 2014, Optical Society of American (OSA), United States.
- Li, X, Heays, A, Visser, R et al 2013, 'Photodissociation of interstellar N2', Astronomy and Astrophysics, vol. 555, pp. 1-18.
- Jessup, K, Gladstone, G, Heays, A et al 2013, '14N15N detectability in Pluto's atmosphere', Icarus, vol. 226, no. 2, pp. 1514-1526.
- Wu, R, Judge, D, Tsai, M et al 2012, 'Experimental verification of strong rotational dependence of fluorescence and predissociation yield in the b1Î u(v = 1) level of 14N2', Journal of Chemical Physics, vol. 136, no. 4, p. 3.
- Heays, A, Lewis, B, Gibson, S et al 2012, 'Tuning out vibrational levels in molecular electron energy-loss spectra', Physical Review A: Atomic, Molecular and Optical Physics, vol. 85, no. 1, p. 8.
- Mandt, K, Gell, D, Perry, M et al 2012, 'Ion densities and composition of Titan's upper atmosphere derived from the Cassini Ion Neutral Mass Spectrometer: Analysis methods and comparison of measured ion densities to photochemical model simulations', Journal of Geophysical Research, vol. 117, no. 10, pp. E10006, 1-22.
- Cavanagh, S, Gibson, S & Lewis, B 2012, 'High-resolution photoelectron spectroscopy of linear , Journal of Chemical Physics, vol. 137, no. 14, pp. 144304-144304.
- Waring, K, Lewis, B, Baldwin, K et al 2001, 'Lambda and Gamma reversal: The dissociation-limit region of the B 3Sigma u - state of O2', Journal of Chemical Physics, vol. 115, no. 13, pp. 5836-5842.
- Dooley, P, Lewis, B, Gibson, S et al 1998, 'A comparative high-resolution study of predissociation linewidths in the Schumann-Runge bands of O2', Journal of Chemical Physics, vol. 109, no. 10, pp. 3856-3867.
- Cavanagh, S, Gibson, S & Lewis, B 2010, 'Photodetachment of Oˉ from threshold to 1.2 eV electron kinetic energy using Velocity-Map Imaging', Journal of Physics: Conference Series(online), vol. 212, p. 7.
- Van Duzor, M, Mbaiwa, F, Wei, J et al 2010, 'Vibronic coupling in the superoxide anion: The vibrational dependence of the photoelectron angular distribution', Journal of Chemical Physics, vol. 133, no. 17, p. 9.
- Mabbs, R, Mbaiwa, F, Wei, J et al 2010, 'Observation of vibration-dependent electron anisotropy in O2 photodetachment', Physical Review A: Atomic, Molecular and Optical Physics, vol. 82, no. 1, pp. 011401, 1-4.
- Lewis, B, Heays, A, Gibson, S et al 2008, 'A coupled-channel model of the 3IIu states of N2: Structure and interactions of the 3sgF3 3IIu and 3puG3 3IIu Rydberg states', Journal of Chemical Physics, vol. 129, no. 16, pp. 1-10.
- Lewis, B, Baldwin, K, Heays, A et al 2008, 'Structure and predissociation of the 3ppuD 3zu+ Rydberg state of N2:First extreme-ultraviolet and new near-infrared observations,with coupled-channels analysis', Journal of Chemical Physics, vol. 129, no. 20, pp. 1-11.
- Liu, X, Shemansky, D, Malone, C et al 2008, 'Experimental and coupled-channels investigation of the radiative properties of the N$_2$ $c_4^{\prime \,{^1\Sigma_u^+}-X\,{^1\Sigma_g^+}$ band system', Journal of Geophysical Research, vol. 113, no. 2, pp. 1-17.
- Ndome, H, Hochlaf, M, Lewis, B et al 2008, 'Sign reversal of the spin-orbit constant for the $C\,{^3\Pi_u}$ state of N$_2$', Journal of Chemical Physics, vol. 129, no. 16, pp. 1-4.
- Liang, M, Heays, A, Lewis, B et al 2007, 'Source of Nitrogen Isotope anomaly in HCN in the Atmosphere of Titan', The Astrophysical Journal, vol. 664, no. August 1, pp. L115-L118.
- Lumpe, J, Floyd, L, Herring, L et al 2007, 'Measurements of thermospheric molecular oxygen from the Solar Ultraviolet Spectral Irradiance Monitor', Journal of Geophysical Research, vol. 112, no. D16308, pp. 1-19.
- Lewis, B, Gibson, S & Heays, A 2007, 'Coupled channels and planetary atmospheres', in Feng Wang, Michael Brunger (ed.), Nanoscale Interactions and Their Applications: Essays in Honour of Ian McCarthy, Transworld Research Network, Kerala, India, pp. 79-93.
- Cavanagh, S, Gibson, S, Gale, M et al. 2007, 'High-resolution velocity-map-imaging photoelectron spectroscopy of the O¯ photodetachment fine-structure transitions', Physical Review A: Atomic, Molecular and Optical Physics, vol. 76, pp. 052708 1-9.
- Roberts, E, Cavanagh, S, Gibson, S et al. 2005, 'Achieving High Signal-to-noise Performace for a Velocity-map Imaging Experiment', Journal of Electron Spectroscopy and Related Phenomena, vol. 144-147, pp. 251-254.
- Haverd, V, Lewis, B, Gibson, S et al 2005, 'Rotational Effects in the Band Oscillator Strengths and Predissociation Linewidths for the Lowest 1Πu-X1Σ+g Transitions of N2', Journal of Chemical Physics, vol. 123, no. 21, pp. 214304-1-9.
- Lewis, B, Gibson, S, Sprengers, J et al 2005, 'Lifetime and Predissociation Yield of 14N2b1Î u(v=1) Revisited: Effects of Rotation', Journal of Chemical Physics, vol. 123, no. 23, pp. 236101-1-3.
- Lewis, B, Gibson, S, Zhang, W et al. 2005, 'Predissociation Mechanism for the Lowest 1Î u States of N2', Journal of Chemical Physics, vol. 122, no. 14, pp. 144302-1-10.
- Sprengers, J, Ubachs, W, Johansson, A et al 2004, 'Lifetime and Predissociation Yield of 14N2 b1 u(v=1)', Journal of Chemical Physics, vol. 120, no. 19, pp. 8973-8978.
- Baldwin, K, Sprengers, J, Ubachs, W et al 2004, 'Ultrahigh Resolution Pulsed XUV Laser Applications: Lifetimes for the Excited 1 u States of Molecular Nitrogen', European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference (CLEO/IQEC 2004), ed. James Fujimoto and Steven Newton, Optical Society of America, Washington DC, pp. 001-002.
- Halliwell, X, Friedrich, R, Gibson, S et al. 2003, 'Quantum Reflection of Metastable Helium 23S Atoms in Hollow Optical Fibres', Optics Communications, vol. 224, pp. 89-95.
- Kono, M, Lewis, B, Baldwin, K et al 2003, 'Experimental Verification of Line- and Band-shape Asymmetry in the Schumann-Runge System of O2', Journal of Chemical Physics, vol. 118, no. 24, pp. 10924-10928.
- Morrill, J, Ginter, M, Hwang, E et al. 2003, 'Two-Photon REMPI Spectra from a1Δg and b1Σ+g to d1Πg in O2', Journal of Molecular Spectroscopy, vol. 219, pp. 200-216.
- Morrill, J, Ginter, M, Lewis, B et al 2003, '[X2g]nd up>1,3g Rydberg States of O2', Journal of Molecular Spectroscopy, vol. 219, pp. 217-226.
- Lewis, B, Gibson, S, Baldwin, K et al 2002, 'Comparative Very-High Resolution VUV Spectroscopy: Laser Spectroscopy of O2', Surface Review and Letters, vol. 9, no. 1, pp. 31-38.
- Roberts, E, Nixon, K, Dedman, C et al. 2002, 'New Magnetic-Dipole Transition of the Oxygen Molecule: B-f3 --g -- X3 --g-(0,0)', Journal of Chemical Physics, vol. 116, no. 13, pp. 5503-5508.
- Lewis, B, Gibson, S, England, J et al 2002, 'Anomalous Isotopic Predissociation in the F3Î u(v=1) State of O2', Journal of Chemical Physics, vol. 116, no. 8, pp. 3286-3296.
- Lewis, B, England, J, Gibson, S et al 2001, 'Electron energy-loss spectra of coupled electronic states: effects of Rydberg-valence interactions in O2', Physical Review A: Atomic, Molecular and Optical Physics, vol. 63, pp. 22707/1-18.
- Lewis, B, Gibson, S, Hawes, F et al 2001, 'A new model for the Schumann-Runge bands of O2', Physics and Chemistry of the Earth Part C, vol. 26, pp. 519-526.
- Lewis, B, Gibson, S, O'Keeffe, P et al 2001, 'Observation of completely destructive quantum interference between interacting resonances in molecular predissociation', Physical Review Letters, vol. 86, no. 8, pp. 1478-1481.
- Waring, K, Lewis, B, Baldwin, K et al 2001, 'λ and γ reversal: The dissociation-limit region of the B 3â??μ state of O2', Journal of Chemical Physics, vol. 115, no. 13, pp. 5836-5842.
- Lewis, B, Gibson, S, Tucay, A et al 2001, 'Identification of the 3pie3Du Rydberg state of O2 by (3+1) resonance-enhanced multiphoton-ionization spectroscopy', Journal of Chemical Physics, vol. 114, no. 19, pp. 8364-8371.
- Dedman, C, Roberts, E, Gibson, S et al. 2001, 'An ion gating, bunching, and potential re-referencing unit', Review of Scientific Instruments, vol. 72, no. 7, pp. 2915-2922.
- Hawes, F, Torop, L, Lewis, B et al 2001, 'Asymmetry sum rule for molecular predissociation', Physical Review A: Atomic, Molecular and Optical Physics, vol. 63, pp. 0125131-12.
- Dedman, C, Roberts, E, Gibson, S et al. 2001, 'Fast 1kV metal-oxide-semiconductor field-effect transistor switch', Review of Scientific Instruments, vol. 72, no. 9, pp. 3718-3720.
- Lewis, B, Gibson, S & Roberts, E 2001, 'Assignment of the excess absorption underlying the Schumann-Runge bands of molecular oxygen', Journal of Chemical Physics, vol. 115, pp. 245-248.
- Lewis, B, Gibson, S, Banerjee, S et al. 2000, 'Relations between Rydberg-Valence Interactions in the O2 Molecule', Journal of Chemical Physics, vol. 113, pp. 2214-2223.
- Lewis, B, Gibson, S & Yoshino, K 1999, 'Comment on Ab initio Dynamic Dipole Polarizabilities for O2, its Photoabsorption Spectrum in the Schumann-Runge Region, and Long-Range Interaction Coefficients for its Dimer', Journal of Chemical Physics, vol. 111, pp. 11236-11237.
- Lacoursiere, J, Meyer, S, Faris, G et al 1999, 'The O1(D) Yield from 02 Photodissociation near H Lyman-a (121.6nm)', Journal of Chemical Physics, vol. 110, pp. 1949-1958.
- Lewis, B, Gibson, S, Copeland, R et al 1999, 'Missing Bands in the Multiphoton Excitation of Coupled Molecular States', Physical Review Letters, vol. 82, pp. 4212-4215.
- Lewis, B, Gibson, S, Morrill, J et al 1999, 'Perturbations in the 3ssg 1,3Pg Rydberg States of O2: Bound-Bound Interactions with the Second 1Pg and Dg and Valence States', Journal of Chemical Physics, vol. 111, pp. 186-197.
- Lewis, B, Gibson, S, Slanger, T et al. 1999, 'The B3S-u bS+g Transition of Molecular Oxygen', Journal of Chemical Physics, vol. 110, pp. 11129-11132.
- Stark, G, Lewis, B, Gibson, S et al 1999, 'High-Resolution Oscillator-Strength Measurements of the CO BS+ - XS+ (0,0) and (1,0) Vibrational Bands', The Astrophysical Journal, vol. 520, pp. 732-736.
- Morrill, J, Ginter, M, Lewis, B et al 1999, 'The (X2Pg) nssg 1,3Pg Rydberg States of O2: Spectra, Structures and Interactions', Journal of Chemical Physics, vol. 111, pp. 173-185.
