High-resolution absorption measurements by use of two-tone frequency-modulation spectroscopy with diode lasers
(1997) In Applied Optics 36(18). p.4043-4054- Abstract
- The capability of two-tone frequency-modulation spectroscopy (TTFMS) in deriving spectral line-shape information was investigated. Two oxygen A-band transitions at 760 nm were selected, and the Voigt profile and two different collisionally narrowed line profiles were employed in their analysis. By means of a least-squares fitting procedure, we obtained accurate information regarding transition strengths and pressure-induced broadening, shift, and narrowing coefficients. Both TTFMS and direct absorption Line shapes were modeled with deviations as small as 0.3% over a wide pressure range by use of the collisionally narrowed Line profiles. Line parameters measured with TTFMS showed excellent agreement with the parameters measured with direct... (More)
- The capability of two-tone frequency-modulation spectroscopy (TTFMS) in deriving spectral line-shape information was investigated. Two oxygen A-band transitions at 760 nm were selected, and the Voigt profile and two different collisionally narrowed line profiles were employed in their analysis. By means of a least-squares fitting procedure, we obtained accurate information regarding transition strengths and pressure-induced broadening, shift, and narrowing coefficients. Both TTFMS and direct absorption Line shapes were modeled with deviations as small as 0.3% over a wide pressure range by use of the collisionally narrowed Line profiles. Line parameters measured with TTFMS showed excellent agreement with the parameters measured with direct absorption. The experimental technique used constant-current fast-wavelength scanning, which improved measurement accuracy. (C) 1997 Optical Society of America. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2257365
- author
- Avetisov, V. G and Kauranen, P
- publishing date
- 1997
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 36
- issue
- 18
- pages
- 4043 - 4054
- publisher
- Optical Society of America
- external identifiers
-
- scopus:0031165182
- ISSN
- 2155-3165
- DOI
- 10.1364/AO.36.004043
- language
- English
- LU publication?
- no
- id
- b5e9b5a8-1fed-4a48-ae87-e0cee36ab640 (old id 2257365)
- date added to LUP
- 2016-04-04 07:06:06
- date last changed
- 2022-01-29 01:38:49
@article{b5e9b5a8-1fed-4a48-ae87-e0cee36ab640, abstract = {{The capability of two-tone frequency-modulation spectroscopy (TTFMS) in deriving spectral line-shape information was investigated. Two oxygen A-band transitions at 760 nm were selected, and the Voigt profile and two different collisionally narrowed line profiles were employed in their analysis. By means of a least-squares fitting procedure, we obtained accurate information regarding transition strengths and pressure-induced broadening, shift, and narrowing coefficients. Both TTFMS and direct absorption Line shapes were modeled with deviations as small as 0.3% over a wide pressure range by use of the collisionally narrowed Line profiles. Line parameters measured with TTFMS showed excellent agreement with the parameters measured with direct absorption. The experimental technique used constant-current fast-wavelength scanning, which improved measurement accuracy. (C) 1997 Optical Society of America.}}, author = {{Avetisov, V. G and Kauranen, P}}, issn = {{2155-3165}}, language = {{eng}}, number = {{18}}, pages = {{4043--4054}}, publisher = {{Optical Society of America}}, series = {{Applied Optics}}, title = {{High-resolution absorption measurements by use of two-tone frequency-modulation spectroscopy with diode lasers}}, url = {{https://lup.lub.lu.se/search/files/5122536/2297013.pdf}}, doi = {{10.1364/AO.36.004043}}, volume = {{36}}, year = {{1997}}, }