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Cavity-enhanced absorption spectroscopy with a rapidly swept diode laser

Abstract:
Cavity-enhanced absorption spectroscopy is explained in terms of the transmission function of a rapidly swept interferometer, and the integrated transmission is shown to be proportional to the cavity ringdown time. The technique is demonstrated on the b1∑g+ - X3∑g- (1,0) band in molecular oxygen at 687 nm using a tunable diode laser and a relatively high-Q optical cavity (finesse ≈ 4000). A detection limit of 3 × 10-8 cm-1 s1/2 is achieved for a 0.8 cm-1 scanning range.
Publication status:
Published

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Publisher copy:
10.1007/s00340-002-1026-1

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
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Journal:
APPLIED PHYSICS B-LASERS AND OPTICS
Volume:
75
Issue:
6-7
Pages:
745-750
Publication date:
2002-11-01
DOI:
EISSN:
1432-0649
ISSN:
0946-2171
Source identifiers:
38537
Language:
English
Pubs id:
pubs:38537
UUID:
uuid:9f3acf5d-6dec-4385-96cc-6629adf0daa8
Local pid:
pubs:38537
Deposit date:
2012-12-19

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