A UV tunable diode laser source based on an external resonant cavity for OH absorption detection

Conference item

Abstract:: A Solid-state tunable light source operating at 309-320 nm has been developed based on frequency up conversion of a cooled diode laser. Frequency doubling is achieved with a beta barium borate crystal enclosed in an external bow-tie cavity. The radiation produced is used for absorption detection of hydroxyl radicals generated by microwave discharge. The ultraviolet beam can be scanned 20-30 GHz by tuning the length of the doubling cavity using a piezoelectric transducer on one of the mirrors and locking the diode laser to the bow-tie cavity. Possible applications of the developed system to the hydroxyl radical detection in atmospheric and chemical dynamics research are discussed.

Host title:: ICONO 2001: NOVEL TRENDS IN NONLINEAR LASER SPECTROSCOPY AND OPTICAL DIAGNOSTICS AND LASER IN CHEMISTRY, BIOPHYSICS, AND BIOMEDICINE
Volume:: 4749
Pages:: 192-199
Publication date:: 2001-01-01
DOI:: 10.1117/12.468893
ISSN:: 0277-786X
ISBN:: 0819445126

Keywords:: absorption spectroscopy

bow-tie cavity

frequency doubling

diode laser

hydroxyl radical
Pubs id:: pubs:38325
UUID:: uuid:f81e9467-6a1e-4776-bfc4-8a38a2f7b242
Local pid:: pubs:38325
Source identifiers:: 38325
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_f81e94676a1e4776bfc48a38a2f7b242

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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