Abstract
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 µm using LiNbO3 as non-linear medium for the DFG source are achieved at a line width of 0.25 cm−1. Photoacoustic measurements in a novel multi-microphone gas cell enable the monitoring of gases at ppb concentration levels.
© 2000 Optical Society of America
PDF ArticleMore Like This
T. V. Lerber, A. Bohren, and M.W. Sigrist
CTuE5 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2000
A. Bohren and M. W. Sigrist
CTuS1 Conference on Lasers and Electro-Optics (CLEO:S&I) 1999
G.-C. Liang, H.-H. Liu, A.H. Kung, A. Schmohl, A. Miklos, and P. Hess
CThO3 Conference on Lasers and Electro-Optics (CLEO:S&I) 2000