Optical heterodyne Herriott-type multipass laser absorption spectrometer

Chuanliang Li; Lulu Liu; Xuanbing Qiu; Jilin Wei; Lunhua Deng; Yangqin Chen

doi:10.3788/COL201513.013001

Optical heterodyne Herriott-type multipass laser absorption spectrometer

Chuanliang Li, Lulu Liu, Xuanbing Qiu, Jilin Wei, Lunhua Deng, Yangqin Chen

Institute for Advanced Study in Precision Spectroscopy

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

11 Scopus citations

Abstract

We present a Herriott-type multipass laser absorption spectrometer enhanced by optical heterodyne detection. The proposal is demonstrated by measuring the spectra of water vapor molecule in the region from 12247.6873 to 12249.6954 cm^-1. Compared with direct absorption spectroscopy, the signal-to-noise ratio is improved nearly one magnitude of factor by combining with the optical heterodyne spectroscopy and extra weak absorption lines are observed. The minimum detectable absorption is estimated at 4.36×10^-8cm^-1 and the measured line shape dominated by Doppler broadening can be precisely recovered by direct transformation of experimental optical heterodyne spectral profile.

Original language	English
Article number	013001
Journal	Chinese Optics Letters
Volume	13
Issue number	1
DOIs	https://doi.org/10.3788/COL201513.013001
State	Published - 10 Jan 2015

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title = "Optical heterodyne Herriott-type multipass laser absorption spectrometer",

abstract = "We present a Herriott-type multipass laser absorption spectrometer enhanced by optical heterodyne detection. The proposal is demonstrated by measuring the spectra of water vapor molecule in the region from 12247.6873 to 12249.6954 cm-1. Compared with direct absorption spectroscopy, the signal-to-noise ratio is improved nearly one magnitude of factor by combining with the optical heterodyne spectroscopy and extra weak absorption lines are observed. The minimum detectable absorption is estimated at 4.36×10-8cm-1 and the measured line shape dominated by Doppler broadening can be precisely recovered by direct transformation of experimental optical heterodyne spectral profile.",

author = "Chuanliang Li and Lulu Liu and Xuanbing Qiu and Jilin Wei and Lunhua Deng and Yangqin Chen",

note = "Publisher Copyright: {\textcopyright} 2015 Chinese Optics Letters.",

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doi = "10.3788/COL201513.013001",

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T1 - Optical heterodyne Herriott-type multipass laser absorption spectrometer

AU - Li, Chuanliang

AU - Liu, Lulu

AU - Qiu, Xuanbing

AU - Wei, Jilin

AU - Deng, Lunhua

AU - Chen, Yangqin

PY - 2015/1/10

Y1 - 2015/1/10

N2 - We present a Herriott-type multipass laser absorption spectrometer enhanced by optical heterodyne detection. The proposal is demonstrated by measuring the spectra of water vapor molecule in the region from 12247.6873 to 12249.6954 cm-1. Compared with direct absorption spectroscopy, the signal-to-noise ratio is improved nearly one magnitude of factor by combining with the optical heterodyne spectroscopy and extra weak absorption lines are observed. The minimum detectable absorption is estimated at 4.36×10-8cm-1 and the measured line shape dominated by Doppler broadening can be precisely recovered by direct transformation of experimental optical heterodyne spectral profile.

AB - We present a Herriott-type multipass laser absorption spectrometer enhanced by optical heterodyne detection. The proposal is demonstrated by measuring the spectra of water vapor molecule in the region from 12247.6873 to 12249.6954 cm-1. Compared with direct absorption spectroscopy, the signal-to-noise ratio is improved nearly one magnitude of factor by combining with the optical heterodyne spectroscopy and extra weak absorption lines are observed. The minimum detectable absorption is estimated at 4.36×10-8cm-1 and the measured line shape dominated by Doppler broadening can be precisely recovered by direct transformation of experimental optical heterodyne spectral profile.

UR - https://www.scopus.com/pages/publications/84922668143

U2 - 10.3788/COL201513.013001

DO - 10.3788/COL201513.013001

M3 - 文章

AN - SCOPUS:84922668143

SN - 1671-7694

VL - 13

JO - Chinese Optics Letters

JF - Chinese Optics Letters

IS - 1

M1 - 013001

ER -

Optical heterodyne Herriott-type multipass laser absorption spectrometer

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