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Browse Journals & Magazines > Lightwave Technology, Journal ...> Volume:28 Issue:10 Help

Detection of CH _{4} in the Mid-IR Using Difference Frequency Generation With Tunable Diode Laser Spectroscopy

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6 Author(s)
Armstrong, I. ; Dept. of Electron. & Electr. Eng., Univ. of Strathclyde, Glasgow, UK ; Johnstone, W. ; Duffin, K. ; Lengden, M.
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This paper demonstrates detection of methane using tunable diode laser spectroscopy (TDLS) through difference frequency generation (DFG) in order to address fundamental rotational-vibrational absorption lines, located around 3404 nm. Direct detection confirms that wavelength referencing of recovered lineshapes, developed for Near infra-red (Near-IR) systems, has been successfully transferred to the presented Middle infra-red (Mid-IR) system. Traditional 1f and 2 f TDLS with WMS detection regimes are also functionally confirmed analogous to their Near-IR equivalents.

Published in:
Lightwave Technology, Journal of  (Volume:28 ,  Issue: 10 )

Date of Publication: May15, 2010

Page(s):
1435 - 1442
ISSN :
0733-8724
INSPEC Accession Number:
11282570
Digital Object Identifier :
10.1109/JLT.2010.2042789
Product Type:
Journals & Magazines
Date of Publication :
17 February 2010
Date of Current Version :
03 May 2010
Issue Date :
May15, 2010
Sponsored by :
IEEE Aerospace and Electronic Systems Society

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