Diode-laser-based ultraviolet-absorption sensor for high-speed detection of the hydroxyl-radical

被引：13

作者：

Anderson, TN

Lucht, RP

Meyer, TR

Roy, S

Gord, JR

机构：

[1] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA

[2] Innovat Sci Solut Inc, Dayton, OH 45440 USA

[3] USAF, Res Lab, Propuls Directorate, Wright Patterson AFB, OH 45433 USA

来源：

OPTICS LETTERS | 2005年 / 30卷 / 11期

关键词：

D O I：

10.1364/OL.30.001321

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new diode-laser-based UV-absorption sensor for high-speed detection of the hydroxyl radical (OH) is described. The sensor is based on sum-frequency generation of UV radiation at 313.5 nm by mixing the output of a 763-nm distributed-feedback diode laser with that of a 532-nm high-power, diode-pumped, frequency-doubled Nd:YVO4 laser in a beta-barium borate crystal. Approximately 25 mu W of UV radiation is generated and used to probe rotational transitions in the A(2)Sigma(+) - X(2)Pi (v'= 0, v" = 0) electronic transition of OH. Single-sweep, single-pass measurements of temperature and OH concentration in a stoichiometric C2H4-air flame are demonstrated at rates up to 20 kHz. (c) 2005 Optical Society of America

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收藏

页码：1321 / 1323

页数：3

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