Publication

Study of the Q Branch Structure of the $^textrm14$ N and $^textrm15$ N Isotopologues of the ν $_textrm4$ Band of Ammonia Using Frequency Chirped Quantum Cascade Lasers
The Journal of Physical Chemistry A 117, 9738–9745 (2013)
G. Duxbury, D. Wilson, K. Hay, N. Langford
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Observation of infrared free-induction decay and optical nutation signals from nitrous oxide using a current modulated quantum cascade laser
The Journal of Chemical Physics 136, 174317 (2012)
Free induction decay (FID), optical nutation, and rapid passage induced signals in nitrous oxide, under both optically thin and …
G. Duxbury, J. F. Kelly, T. A. Blake, N. Langford
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Sub-Doppler spectra of infrared hyperfine transitions of nitric oxide using a pulse modulated quantum cascade laser: Rapid passage, free induction decay, and the ac Stark effect
The Journal of Chemical Physics 136, 174319 (2012)
Using a low power, rapid (nsec) pulse-modulated quantum cascade (QC) laser, collective coherent effects in the 5 μm spectrum of nitric …
G. Duxbury, J. F. Kelly, T. A. Blake, N. Langford
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The ac Stark effect in nitric oxide induced by rapidly swept continuous wave quantum cascade lasers
The Journal of Chemical Physics 136, 174318 (2012)
A large ac Stark effect has been observed when nitric oxide, at low pressure in a long optical path (100 m) Herriot cell, is subjected …
G. Duxbury, J. F. Kelly, T. A. Blake, N. Langford
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Real-time diagnostics of a jet engine exhaust using an intra-pulse quantum cascade laser spectrometer
Molecular Physics 109, 2131–2142 (2011)
G. Duxbury, K. G. Hay, N. Langford, M. P. Johnson, J. D. Black
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Time dependent measurements of nitrous oxide and carbon dioxide collisional relaxation processes by a frequency down-chirped quantum cascade laser: Rapid passage signals and the time dependence of collisional processes
The Journal of Chemical Physics 132, 164301 (2010)
Intrapulse quantum cascade laser spectrometers are able to produce both saturation and molecular alignment of the gas sample. This is …
N. Tasinato, K. G. Hay, N. Langford, G. Duxbury, D. Wilson
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An investigation of collisional processes in a Dicke narrowed transition of water vapor in the 7.8 μm spectral region by frequency down-chirped quantum cascade laser spectroscopy
The Journal of Chemical Physics 132, 044316 (2010)
Information about intermolecular potentials is usually obtained through the analysis of the absorption line shapes recorded in the …
N. Tasinato, G. Duxbury, N. Langford, K. G. Hay
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Quantum cascade laser spectroscopy: diagnostics to non-linear optics
Journal of Modern Optics 56, 2034–2048 (2009)
G. Duxbury, N. Langford, K. Hay, N. Tasinato
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Quantum cascade laser investigations of CH4 and C2H2 interconversion in hydrocarbon/H2 gas mixtures during microwave plasma enhanced chemical vapor deposition of diamond
Journal of Applied Physics 106, 033305 (2009)
CH 4 and C2H2 molecules (and their interconversion) in hydrocarbon/rare gas/H2 gas mixtures in a microwave reactor used for plasma …
J. Ma, A. Cheesman, M. N. R. Ashfold, K. G. Hay, S. Wright, N. Langford, G. Duxbury, Y. A. Mankelevich
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Two-photon absorption properties of crystalline KNbO $_textrm3$ at 430 nm and efficient high pulse energy blue second-harmonic generation
Laser Physics Letters 6, 450–453 (2009)
A. Major, D. Hutchings, N. Langford, A. Ferguson, J. Aitchison, P. Smith
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