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Research Output 2001 2015

2015

Direct entry students into the faculty of science (SPELT)

Langford, N. & Willison, D., 2015, Glasgow : University of Strathclyde.

Research output: Other contribution

2012
7 Citations (Scopus)

Observation of infrared free-induction decay and optical nutation signals from nitrous oxide using a current modulated quantum cascade laser

Duxbury, G., Kelly, J. F., Blake, T. A. & Langford, N., 7 May 2012, In : Journal of Chemical Physics . 136, 17, 14 p., 174317.

Research output: Contribution to journalArticle

Quantum cascade lasers
nutation
nitrous oxides
Nitrous Oxide
quantum cascade lasers
11 Citations (Scopus)
Stark effect
Quantum cascade lasers
quantum cascade lasers
nitric oxide
induction
4 Citations (Scopus)

The ac Stark effect in nitric oxide induced by rapidly swept continuous wave quantum cascade lasers

Duxbury, G., Kelly, J. F., Blake, T. A. & Langford, N., 2012, In : Journal of Chemical Physics . 136, 17, 6 p., 174318.

Research output: Contribution to journalArticle

Stark effect
Quantum cascade lasers
continuous wave lasers
quantum cascade lasers
nitric oxide
2011
8 Citations (Scopus)

Real-time diagnostics of a jet engine exhaust using an intra-pulse quantum cascade laser spectrometer

Duxbury, G., Hay, K. G., Langford, N., Johnson, M. P. & Black, J. D., 2011, In : Molecular Physics. 109, 17-18, p. 2131-2142 12 p.

Research output: Contribution to journalArticle

jet engines
Vehicle Emissions
laser spectrometers
Semiconductor Lasers
Quantum cascade lasers
2010
15 Citations (Scopus)
Quantum cascade lasers
Laser spectroscopy
Steam
quantum cascade lasers
laser spectroscopy
8 Citations (Scopus)

Collisional effects on quantum cascade laser induced molecular alignment

Duxbury, G., Tasinato, N., Hay, K., Wilson, D., Langford, N., Lewis, JKC. (ed.) & PredoiCross, A. (ed.), 2010, p. 194-203. 9 p.

Research output: Contribution to conferencePaper

quantum cascade lasers
alignment
laser spectrometers
pressure broadening
nutation
16 Citations (Scopus)
Quantum cascade lasers
pressure broadening
nitrous oxides
Nitrous Oxide
quantum cascade lasers
2009
28 Citations (Scopus)

Quantum cascade laser investigations of CH4 and C2H2 interconversion in hydrocarbon/H2 gas mixtures during microwave plasma enhanced chemical vapor deposition of diamond

Ma, J., Cheesman, A., Ashfold, M. N. R., Hay, K. G., Wright, S., Langford, N., Duxbury, G. & Mankelevich, Y. A., 5 Aug 2009, In : Journal of Applied Physics. 106, 3, 15 p., 033305.

Research output: Contribution to journalArticle

quantum cascade lasers
gas mixtures
hydrocarbons
diamonds
reactors
20 Citations (Scopus)

Quantum cascade laser spectroscopy: diagnostics to non-linear optics

Duxbury, G., Langford, N., Hay, K. & Tasinato, N., 28 Oct 2009, In : Journal of Modern Optics. 56, 18-19, p. 2034-2048 15 p.

Research output: Contribution to journalArticle

nonlinear optics
quantum cascade lasers
laser spectroscopy
gases
infrared lasers
2 Citations (Scopus)

Two-photon absorption properties of crystalline knbo3 at 430 nm and efficient high pulse energy blue second-harmonic generation

Major, A., Hutchings, D., Langford, N., Ferguson, A. I., Aitchison, J. S., Smith, P. W. E. & Natural Sciences and Engineering Research Council (NSERC) in Canada (Funder), Jun 2009, In : Laser Physics Letters. 6, 6, p. 450-453 3 p.

Research output: Contribution to journalArticle

Harmonic generation
harmonic generations
Photons
Crystalline materials
niobates
2008
9 Citations (Scopus)

Delayed rapid passage and transient gain signals generated using a chirped 8 mu m quantum cascade laser

Duxbury, G., Langford, N. & Hay, K. G., 2008, In : Journal of Modern Optics. 55, 19-20, p. 3293-3303 10 p.

Research output: Contribution to journalArticle

quantum cascade lasers
switches
optical density
chirp
cells
18 Citations (Scopus)

In-flight measurements of ambient methane, nitrous oxide and water using a quantum cascade laser based spectrometer

Hay, K. G., Wright, S., Duxbury, G. & Langford, N., Feb 2008, In : Applied Physics B: Lasers and Optics. 90, 2, p. 329-337 9 p.

Research output: Contribution to journalArticle

nitrous oxides
quantum cascade lasers
methane
flight
spectrometers
2007

Quantum cascade laser spectroscopy, trace gas analysis to non-linear optics

Duxbury, G. & Langford, N., Jun 2007, p. 24-29. 5 p.

Research output: Contribution to conferencePaper

gas analysis
nonlinear optics
quantum cascade lasers
laser spectroscopy
laser spectrometers
31 Citations (Scopus)

Rapid passage induced population transfer and coherences in the 8 micron spectrum of nitrous oxide

Duxbury, G., Langford, N., McCulloch, M. T. & Wright, S., 2007, In : Molecular Physics. 105, 5-7, p. 741-754 14 p.

Research output: Contribution to journalArticle

nitrous oxides
Nitrous Oxide
Laser pulses
Lasers
Optical pumping
2006
19 Citations (Scopus)
nitrous oxides
quantum cascade lasers
troposphere
methane
spectrometers
37 Citations (Scopus)

Application of a quantum cascade laser for time-resolved, in situ probing of CH4/H2 and C2H2/H2 gas mixtures during microwave plasma enhanced chemical vapor deposition of diamond

Cheesman, A., Smith, J. A., Ashfold, M. N. R., Langford, N., Wright, S. & Duxbury, G., 2 Mar 2006, In : Journal of Physical Chemistry A. 110, 8, p. 2821 -2828

Research output: Contribution to journalArticle

Quantum cascade lasers
Diamond
quantum cascade lasers
Plasma enhanced chemical vapor deposition
Hydrocarbons
7 Citations (Scopus)

Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser

Zhang, W., Ackemann, T., Schmid, M., Langford, N. & Ferguson, A., 6 Mar 2006, In : Optics Express. 14, 5, p. 1810-1821 12 p.

Research output: Contribution to journalArticle

Open Access
File
surface emitting lasers
pulse duration
cavities
lasers
pulses
32 Citations (Scopus)

Observation of saturation and rapid passage signals in the 10.25 micron spectrum of ethylene using a frequency chirped quantum cascade laser

McCulloch, M. T., Duxbury, G. & Langford, N., 2006, In : Molecular Physics. 104, 16-17, p. 2767-2779 13 p.

Research output: Contribution to journalArticle

Semiconductor Lasers
Quantum cascade lasers
quantum cascade lasers
ethylene
Observation
2005
50 Citations (Scopus)

Efficient Raman shifting of high-energy picosecond pulses into the eye-safe 1.5-µm spectral region by use of a KGd(WO4)_2 crystal

Major, A., Aitchison, J. S., Smith, P. W. E., Langford, N. & Ferguson, A. I., Feb 2005, In : Optics Letters. 30, 4, p. 421-423 2 p.

Research output: Contribution to journalArticle

picosecond pulses
crystals
energy
radiation
coefficients
82 Citations (Scopus)

Quantum cascade semiconductor infrared and far-infrared lasers: from trace gas sensing to non-linear optics

Duxbury, G., Langford, N., McCulloch, M. T. & Wright, S., Nov 2005, In : Chemical Society Reviews. 34, 11, p. 921-934 14 p.

Research output: Contribution to journalLiterature review

Nonlinear optics
Infrared lasers
Gases
Semiconductor materials
Infrared radiation
39 Citations (Scopus)

Real-time trace-level detection of carbon dioxide and ethylene in car exhaust gases

McCulloch, M. T., Langford, N. & Duxbury, G., 10 May 2005, In : Applied Optics. 44, 14, p. 2887-2894 8 p.

Research output: Contribution to journalArticle

Quantum cascade lasers
exhaust gases
quantum cascade lasers
Exhaust gases
Spectrometers
2004
5 Citations (Scopus)

Coherent two-photon absorption spectroscopy of the Raman-active KGd(WO4)2 crystal

Major, A., Aitchison, J. S., Smith, P. W. E., Langford, N. & Ferguson, A. I., Dec 2004, In : Optics Letters. 29, 24, p. 2896-2898 2 p.

Research output: Contribution to journalArticle

absorption spectroscopy
photons
crystals
tungstates
gadolinium
2003
59 Citations (Scopus)

Characterization of the nonlinear refractive index of the laser crystal Yb:KGd(WO 4) 2

Major, A., Nikolakakos, I., Aitchison, J. S., Ferguson, A. I., Langford, N. & Smith, P. W. E., Oct 2003, In : Applied Physics B: Lasers and Optics. 77, 4, p. 433-436 3 p.

Research output: Contribution to journalArticle

refractivity
locking
crystals
lasers
lenses

Diode-pumped passively mode-locked nd:KGd(WO4)2 laser with 1-W average output power

Major, A., Langford, N., Graf, T., Burns, D. & Ferguson, A. I., 2003, In : Optics Letters. 27, 16, p. 1478-1480 3 p.

Research output: Contribution to journalArticle

locking
diodes
output
Bragg reflectors
pulses
97 Citations (Scopus)

Fast, real-time spectrometer based on a pulsed quantum-cascade laser

Normand, E., McCulloch, M., Duxbury, G. & Langford, N., Jan 2003, In : Optics Letters. 28, 1, p. 16-18 2 p.

Research output: Contribution to journalArticle

quantum cascade lasers
pulsed lasers
spectrometers
infrared spectrometers
cells
81 Citations (Scopus)

Highly sensitive detection of trace gases using the time-resolved frequency downchirp from pulsed quantum-cascade lasers

McCulloch, M. T., Normand, E. L., Langford, N., Duxbury, G. & Newnham, D. A., Aug 2003, In : Journal of the Optical Society of America B. 20, 8, p. 1761-1768 7 p.

Research output: Contribution to journalArticle

quantum cascade lasers
pulsed lasers
spectrometers
gases
pulse repetition rate
2002
15 Citations (Scopus)

Additive-pulse mode locking of a diode-pumped Nd:KGd(WO4)2 laser

Major, A., Langford, N., Graf, T. & Ferguson, A. I., Oct 2002, In : Applied Physics B: Lasers and Optics. 75, 4-5, p. 467-469 2 p.

Research output: Contribution to journalArticle

locking
diodes
pulses
lasers
repetition
44 Citations (Scopus)

Diode-pumped passively mode-locked Nd:KGd(WO_4 )_2 laser with 1-W average output power

Major, A., Langford, N., Graf, T., Burns, D. & Ferguson, A. I., Aug 2002, In : Optics Letters. 27, 16, p. 1478-1480 2 p.

Research output: Contribution to journalArticle

locking
diodes
output
Bragg reflectors
pulses

Diode-pumped passively mode-locked nd:KGd(WO4)2 laser using saturable Bragg reflector

Major, A., Langford, N., Ferguson, A. I., Graf, T. & Burns, D., 2002, Lasers and electro-optics 2002 technical digest: summaries of the papers presented at lasers and electro-optics 2002. New York: IEEE, 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Bragg reflectors
pulse duration
diodes
dogs
pulse repetition rate
39 Citations (Scopus)

Saturable bragg reflector-based continuous-wave mode locking of yb : kgd(wo4)(2) laser

Major, A., Giniunas, L., Langford, N., Ferguson, A. I., Burns, D., Bente, E. & Danielius, R., 15 Apr 2002, In : Journal of Modern Optics. 49, 5-6, p. 787-793 6 p.

Research output: Contribution to journalArticle

Bragg reflectors
locking
continuous radiation
lasers
quantum wells
2001
10 Citations (Scopus)
Laser modes
Conversion efficiency
continuous radiation
Light sources
harmonics