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Wavelength modulation spectroscopy-digital detection of gas absorption harmonics based on Fourier analysis

Mei, Liang LU and Svanberg, Sune LU (2015) In Applied Optics 54(9). p.2234-2243
Abstract
This work presents a detailed study of the theoretical aspects of the Fourier analysis method, which has been utilized for gas absorption harmonic detection in wavelength modulation spectroscopy (WMS). The lock-in detection of the harmonic signal is accomplished by studying the phase term of the inverse Fourier transform of the Fourier spectrum that corresponds to the harmonic signal. The mathematics and the corresponding simulation results are given for each procedure when applying the Fourier analysis method. The present work provides a detailed view of the WMS technique when applying the Fourier analysis method. (c) 2015 Optical Society of America
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Optics
volume
54
issue
9
pages
2234 - 2243
publisher
OSA
external identifiers
  • wos:000351638300011
  • scopus:84942367037
ISSN
2155-3165
DOI
10.1364/AO.54.002234
language
English
LU publication?
yes
id
43811466-c87d-4f27-aa47-71b9c11260e0 (old id 5282013)
date added to LUP
2015-04-24 13:01:41
date last changed
2017-10-08 03:21:25
@article{43811466-c87d-4f27-aa47-71b9c11260e0,
  abstract     = {This work presents a detailed study of the theoretical aspects of the Fourier analysis method, which has been utilized for gas absorption harmonic detection in wavelength modulation spectroscopy (WMS). The lock-in detection of the harmonic signal is accomplished by studying the phase term of the inverse Fourier transform of the Fourier spectrum that corresponds to the harmonic signal. The mathematics and the corresponding simulation results are given for each procedure when applying the Fourier analysis method. The present work provides a detailed view of the WMS technique when applying the Fourier analysis method. (c) 2015 Optical Society of America},
  author       = {Mei, Liang and Svanberg, Sune},
  issn         = {2155-3165},
  language     = {eng},
  number       = {9},
  pages        = {2234--2243},
  publisher    = {OSA},
  series       = {Applied Optics},
  title        = {Wavelength modulation spectroscopy-digital detection of gas absorption harmonics based on Fourier analysis},
  url          = {http://dx.doi.org/10.1364/AO.54.002234},
  volume       = {54},
  year         = {2015},
}