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Detection of elemental mercury by multimode diode laser correlation spectroscopy

Lou, Xiutao LU ; Somesfalean, Gabriel LU ; Svanberg, Sune LU ; Zhang, Zhiguo and Wu, Shaohua (2012) In Optics Express 20(5). p.4927-4938
Abstract
We demonstrate a method for elemental mercury detection based on correlation spectroscopy employing UV laser radiation generated by sum-frequency mixing of two visible multimode diode lasers. Resonance matching of the multimode UV laser is achieved in a wide wavelength range and with good tolerance for various operating conditions. Large mode-hops provide an off-resonance baseline, eliminating interferences from other gas species with broadband absorption. A sensitivity of 1 mu g/m(3) is obtained for a 1-m path length and 30-s integration time. The performance of the system shows promise for mercury monitoring in industrial applications. (C) 2012 Optical Society of America
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
20
issue
5
pages
4927 - 4938
publisher
OSA
external identifiers
  • wos:000301053200012
  • scopus:84857541955
ISSN
1094-4087
DOI
10.1364/OE.20.004927
language
English
LU publication?
yes
id
0db41c5c-1ae0-4cae-90d1-8074079f77ac (old id 2517328)
date added to LUP
2012-05-09 09:47:10
date last changed
2017-07-02 03:55:13
@article{0db41c5c-1ae0-4cae-90d1-8074079f77ac,
  abstract     = {We demonstrate a method for elemental mercury detection based on correlation spectroscopy employing UV laser radiation generated by sum-frequency mixing of two visible multimode diode lasers. Resonance matching of the multimode UV laser is achieved in a wide wavelength range and with good tolerance for various operating conditions. Large mode-hops provide an off-resonance baseline, eliminating interferences from other gas species with broadband absorption. A sensitivity of 1 mu g/m(3) is obtained for a 1-m path length and 30-s integration time. The performance of the system shows promise for mercury monitoring in industrial applications. (C) 2012 Optical Society of America},
  author       = {Lou, Xiutao and Somesfalean, Gabriel and Svanberg, Sune and Zhang, Zhiguo and Wu, Shaohua},
  issn         = {1094-4087},
  language     = {eng},
  number       = {5},
  pages        = {4927--4938},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {Detection of elemental mercury by multimode diode laser correlation spectroscopy},
  url          = {http://dx.doi.org/10.1364/OE.20.004927},
  volume       = {20},
  year         = {2012},
}