Collisional effects on quantum cascade laser induced molecular alignment

Geoffrey Duxbury; Nicola Tasinato; Kenneth Hay; David Wilson; Nigel Langford; JKC Lewis; A PredoiCross

doi:10.1063/1.3517554

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 conference › Paper › peer-review

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.

Original language	English
Pages	194-203
Number of pages	9
DOIs	https://doi.org/10.1063/1.3517554
Publication status	Published - 2010
Event	20th International Conference on Spectral Line Shapes - St.Johns, Canada Duration: 6 Jun 2010 → 11 Jun 2010

Conference

Conference	20th International Conference on Spectral Line Shapes
Country/Territory	Canada
City	St.Johns
Period	6/06/10 → 11/06/10

Keywords

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

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10.1063/1.3517554

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title = "Collisional effects on quantum cascade laser induced molecular alignment",

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",

language = "English",

pages = "194--203",

note = "20th International Conference on Spectral Line Shapes ; Conference date: 06-06-2010 Through 11-06-2010",

}

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

T2 - 20th International Conference on Spectral Line Shapes

Y2 - 6 June 2010 through 11 June 2010

ER -

Collisional effects on quantum cascade laser induced molecular alignment

Abstract

Conference

Keywords

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