Mid-IR photoacoustic trace gas spectroscopy with an optical parametric oscillator based difference frequency generation laser source

被引：0
|
作者：
Bohren, A [1 ]
von Lerber, T [1 ]
Sigrist, MW [1 ]
机构：
[1] VIVASTAR AG, CH-6330 Cham, Switzerland
来源：
ADVANCED SOLID STATE LASERS, PROCEEDINGS | 2000年 / 34卷
关键词：
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A nanosecond pulsed Optical Parametric Oscillator based Difference Frequency Generation IR-Laser source is implemented in a spectrometer for sensitive and selective trace gas analysis. Tuning ranges of 400 - 2000 nm for the OPO and of 2.5 to 4.5 mum using LiNbO3 as non-linear medium for the DFG source are achieved at a linewidth of 0.25 cm(-1). Photoacoustic measurements in a novel multi-microphone gas cell enable the monitoring of gases at ppb concentration levels.
引用
收藏
页码：229 / 235
页数：7
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