Wavelength modulation spectroscopy-digital detection of gas absorption harmonics based on Fourier analysis
(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:
https://lup.lub.lu.se/record/5282013
- author
- Mei, Liang LU and Svanberg, Sune LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 54
- issue
- 9
- pages
- 2234 - 2243
- publisher
- Optical Society of America
- 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
- 2016-04-01 11:05:51
- date last changed
- 2022-04-28 06:58:47
@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 = {{Optical Society of America}}, 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}}, doi = {{10.1364/AO.54.002234}}, volume = {{54}}, year = {{2015}}, }