Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry

Thomas Seeger; Johannes Kiefer; Alfred Leipertz; Brian D. Patterson; Christopher J. Kliewer; Thomas B. Settersten

doi:10.1364/OL.34.003755

Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry

Thomas Seeger, Johannes Kiefer, Alfred Leipertz, Brian D. Patterson, Christopher J. Kliewer, Thomas B. Settersten

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Abstract

Time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy using picosecond-duration laser pulses is investigated for gas thermometry. The use of picosecond laser pulses significantly reduces background caused by scattering of the probe beam, and delayed probing of the Raman coherence enables elimination of interference from nonresonant four-wave mixing processes. Temperatures inferred from rotational spectra are sensitive to the probe delay because of the rotational-level dependence of collisional dephasing of Raman coherences. The sensitivity decreases, however, with increasing temperature, and accurate temperature measurements in a flame are demonstrated using a standard frequency-domain analysis of the spectra. (C) 2009 Optical Society of America

Original language	English
Pages (from-to)	3755-3757
Number of pages	3
Journal	Optics Letters
Volume	34
Issue number	23
DOIs	https://doi.org/10.1364/OL.34.003755
Publication status	Published - 1 Dec 2009

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-34-23-3755. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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title = "Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry",

abstract = "Time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy using picosecond-duration laser pulses is investigated for gas thermometry. The use of picosecond laser pulses significantly reduces background caused by scattering of the probe beam, and delayed probing of the Raman coherence enables elimination of interference from nonresonant four-wave mixing processes. Temperatures inferred from rotational spectra are sensitive to the probe delay because of the rotational-level dependence of collisional dephasing of Raman coherences. The sensitivity decreases, however, with increasing temperature, and accurate temperature measurements in a flame are demonstrated using a standard frequency-domain analysis of the spectra. (C) 2009 Optical Society of America",

author = "Thomas Seeger and Johannes Kiefer and Alfred Leipertz and Patterson, {Brian D.} and Kliewer, {Christopher J.} and Settersten, {Thomas B.}",

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language = "English",

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AU - Seeger, Thomas

AU - Kiefer, Johannes

AU - Leipertz, Alfred

AU - Patterson, Brian D.

AU - Kliewer, Christopher J.

AU - Settersten, Thomas B.

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PY - 2009/12/1

Y1 - 2009/12/1

N2 - Time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy using picosecond-duration laser pulses is investigated for gas thermometry. The use of picosecond laser pulses significantly reduces background caused by scattering of the probe beam, and delayed probing of the Raman coherence enables elimination of interference from nonresonant four-wave mixing processes. Temperatures inferred from rotational spectra are sensitive to the probe delay because of the rotational-level dependence of collisional dephasing of Raman coherences. The sensitivity decreases, however, with increasing temperature, and accurate temperature measurements in a flame are demonstrated using a standard frequency-domain analysis of the spectra. (C) 2009 Optical Society of America

AB - Time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy using picosecond-duration laser pulses is investigated for gas thermometry. The use of picosecond laser pulses significantly reduces background caused by scattering of the probe beam, and delayed probing of the Raman coherence enables elimination of interference from nonresonant four-wave mixing processes. Temperatures inferred from rotational spectra are sensitive to the probe delay because of the rotational-level dependence of collisional dephasing of Raman coherences. The sensitivity decreases, however, with increasing temperature, and accurate temperature measurements in a flame are demonstrated using a standard frequency-domain analysis of the spectra. (C) 2009 Optical Society of America

U2 - 10.1364/OL.34.003755

DO - 10.1364/OL.34.003755

M3 - Article

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EP - 3757

JO - Optics Letters

JF - Optics Letters

IS - 23

ER -

Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry

Abstract

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