Collisional effects on quantum cascade laser induced molecular alignment

Geoffrey Duxbury, Nicola Tasinato, Kenneth Hay, David Wilson, Nigel Langford, JKC Lewis (Editor), A PredoiCross (Editor)

Research output: Contribution to conferencePaper

8 Citations (Scopus)

Abstract

Intra-pulse quantum cascade laser spectrometers are able to produce both saturation and molecular alignment of a molecular gas. The resultant time domain spectra resemble those seen in coherent optical nutation experiments. In this paper we discuss the ways in which this technique may be used to investigate nitrous oxide-foreign gas collisions, and also those involving a Dicke narrowed line of water. In both cases the chirp rate dependence of the pressure broadening, and its dependence on the collision partner is demonstrated.
LanguageEnglish
Pages194-203
Number of pages9
DOIs
Publication statusPublished - 2010
Event20th International Conference on Spectral Line Shapes - St.Johns, Canada
Duration: 6 Jun 201011 Jun 2010

Conference

Conference20th International Conference on Spectral Line Shapes
CountryCanada
CitySt.Johns
Period6/06/1011/06/10

Fingerprint

quantum cascade lasers
alignment
laser spectrometers
pressure broadening
nutation
collisions
nitrous oxides
molecular gases
chirp
saturation
pulses
gases
water

Keywords

  • infrared spectroscopy
  • Maxwell-Bloch equations
  • quantum cascade lasers
  • intermolecular energy transfer
  • molecular collision process

Cite this

Duxbury, G., Tasinato, N., Hay, K., Wilson, D., Langford, N., Lewis, JKC. (Ed.), & PredoiCross, A. (Ed.) (2010). Collisional effects on quantum cascade laser induced molecular alignment. 194-203. Paper presented at 20th International Conference on Spectral Line Shapes, St.Johns, Canada. https://doi.org/10.1063/1.3517554
Duxbury, Geoffrey ; Tasinato, Nicola ; Hay, Kenneth ; Wilson, David ; Langford, Nigel ; Lewis, JKC (Editor) ; PredoiCross, A (Editor). / Collisional effects on quantum cascade laser induced molecular alignment. Paper presented at 20th International Conference on Spectral Line Shapes, St.Johns, Canada.9 p.
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abstract = "Intra-pulse quantum cascade laser spectrometers are able to produce both saturation and molecular alignment of a molecular gas. The resultant time domain spectra resemble those seen in coherent optical nutation experiments. In this paper we discuss the ways in which this technique may be used to investigate nitrous oxide-foreign gas collisions, and also those involving a Dicke narrowed line of water. In both cases the chirp rate dependence of the pressure broadening, and its dependence on the collision partner is demonstrated.",
keywords = "infrared spectroscopy, Maxwell-Bloch equations, quantum cascade lasers, intermolecular energy transfer , molecular collision process",
author = "Geoffrey Duxbury and Nicola Tasinato and Kenneth Hay and David Wilson and Nigel Langford and JKC Lewis and A PredoiCross",
year = "2010",
doi = "10.1063/1.3517554",
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note = "20th International Conference on Spectral Line Shapes ; Conference date: 06-06-2010 Through 11-06-2010",

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Duxbury, G, Tasinato, N, Hay, K, Wilson, D, Langford, N, Lewis, JKC (ed.) & PredoiCross, A (ed.) 2010, 'Collisional effects on quantum cascade laser induced molecular alignment' Paper presented at 20th International Conference on Spectral Line Shapes, St.Johns, Canada, 6/06/10 - 11/06/10, pp. 194-203. https://doi.org/10.1063/1.3517554

Collisional effects on quantum cascade laser induced molecular alignment. / Duxbury, Geoffrey; Tasinato, Nicola; Hay, Kenneth; Wilson, David; Langford, Nigel; Lewis, JKC (Editor); PredoiCross, A (Editor).

2010. 194-203 Paper presented at 20th International Conference on Spectral Line Shapes, St.Johns, Canada.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Collisional effects on quantum cascade laser induced molecular alignment

AU - Duxbury, Geoffrey

AU - Tasinato, Nicola

AU - Hay, Kenneth

AU - Wilson, David

AU - Langford, Nigel

A2 - Lewis, JKC

A2 - PredoiCross, A

PY - 2010

Y1 - 2010

N2 - Intra-pulse quantum cascade laser spectrometers are able to produce both saturation and molecular alignment of a molecular gas. The resultant time domain spectra resemble those seen in coherent optical nutation experiments. In this paper we discuss the ways in which this technique may be used to investigate nitrous oxide-foreign gas collisions, and also those involving a Dicke narrowed line of water. In both cases the chirp rate dependence of the pressure broadening, and its dependence on the collision partner is demonstrated.

AB - Intra-pulse quantum cascade laser spectrometers are able to produce both saturation and molecular alignment of a molecular gas. The resultant time domain spectra resemble those seen in coherent optical nutation experiments. In this paper we discuss the ways in which this technique may be used to investigate nitrous oxide-foreign gas collisions, and also those involving a Dicke narrowed line of water. In both cases the chirp rate dependence of the pressure broadening, and its dependence on the collision partner is demonstrated.

KW - infrared spectroscopy

KW - Maxwell-Bloch equations

KW - quantum cascade lasers

KW - intermolecular energy transfer

KW - molecular collision process

U2 - 10.1063/1.3517554

DO - 10.1063/1.3517554

M3 - Paper

SP - 194

EP - 203

ER -

Duxbury G, Tasinato N, Hay K, Wilson D, Langford N, Lewis JKC, (ed.) et al. Collisional effects on quantum cascade laser induced molecular alignment. 2010. Paper presented at 20th International Conference on Spectral Line Shapes, St.Johns, Canada. https://doi.org/10.1063/1.3517554