Transient grating spectroscopy with delayed thermalization in non-combusting CO/air mixtures

Yuanyuan Li; William L. Roberts; Michael S. Brown; G. C. Herring

doi:10.1016/j.optcom.2003.08.036

Transient grating spectroscopy with delayed thermalization in non-combusting CO/air mixtures

Yuanyuan Li, William L. Roberts^*, Michael S. Brown, G. C. Herring

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Transient grating spectroscopy is used to observe slowly forming thermal gratings in a mixture (non-combusting CO/air at ≤0.7 MPa) of two gases that are individually transparent. Thermalization in the mixture implies a photochemical process at 532 nm that populates the metastable singlet level ¹Δ_g in O₂ through collision-assisted absorption in O₂ pairs. The laser intensity dependence of this process is measured.

Original language	English (US)
Pages (from-to)	255-258
Number of pages	4
Journal	Optics Communications
Volume	226
Issue number	1-6
DOIs	https://doi.org/10.1016/j.optcom.2003.08.036
State	Published - Oct 15 2003
Externally published	Yes

Keywords

Active oxygen
Singlet O (Δ)
TGS
Transient grating spectroscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering
Physical and Theoretical Chemistry

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10.1016/j.optcom.2003.08.036

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title = "Transient grating spectroscopy with delayed thermalization in non-combusting CO/air mixtures",

abstract = "Transient grating spectroscopy is used to observe slowly forming thermal gratings in a mixture (non-combusting CO/air at ≤0.7 MPa) of two gases that are individually transparent. Thermalization in the mixture implies a photochemical process at 532 nm that populates the metastable singlet level 1Δg in O2 through collision-assisted absorption in O2 pairs. The laser intensity dependence of this process is measured.",

keywords = "Active oxygen, Singlet O (Δ), TGS, Transient grating spectroscopy",

author = "Yuanyuan Li and Roberts, {William L.} and Brown, {Michael S.} and Herring, {G. C.}",

year = "2003",

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volume = "226",

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journal = "Optics Communications",

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T1 - Transient grating spectroscopy with delayed thermalization in non-combusting CO/air mixtures

AU - Li, Yuanyuan

AU - Roberts, William L.

AU - Brown, Michael S.

AU - Herring, G. C.

PY - 2003/10/15

Y1 - 2003/10/15

N2 - Transient grating spectroscopy is used to observe slowly forming thermal gratings in a mixture (non-combusting CO/air at ≤0.7 MPa) of two gases that are individually transparent. Thermalization in the mixture implies a photochemical process at 532 nm that populates the metastable singlet level 1Δg in O2 through collision-assisted absorption in O2 pairs. The laser intensity dependence of this process is measured.

AB - Transient grating spectroscopy is used to observe slowly forming thermal gratings in a mixture (non-combusting CO/air at ≤0.7 MPa) of two gases that are individually transparent. Thermalization in the mixture implies a photochemical process at 532 nm that populates the metastable singlet level 1Δg in O2 through collision-assisted absorption in O2 pairs. The laser intensity dependence of this process is measured.

KW - Active oxygen

KW - Singlet O (Δ)

KW - TGS

KW - Transient grating spectroscopy

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U2 - 10.1016/j.optcom.2003.08.036

DO - 10.1016/j.optcom.2003.08.036

M3 - Article

AN - SCOPUS:0141894270

SN - 0030-4018

VL - 226

SP - 255

EP - 258

JO - Optics Communications

JF - Optics Communications

IS - 1-6

ER -

Transient grating spectroscopy with delayed thermalization in non-combusting CO/air mixtures

Abstract

Keywords

ASJC Scopus subject areas

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