Abstract
We report the results from a new pump/probe spectrometer for potential use in combustion diagnostics that employs asynchronous optical sampling. The instrument consists of two frequency-doubled mode-locked Nd:YAG lasers operating at slightly different repetition rates, synchronously pumping two dye lasers (rhodamine 6G) to generate the pump and probe beams. The spectral and temporal capabilities of the instrument are examined by obtaining a spectrum and an excited state decay of rhodamine B. The instrument response is shown to be proportional to pump power, probe power, and sample absorptance. Different frequency synthesizers and different modes of triggering are used to study their effect on signal stability.
© 1987 Optical Society of America
Full Article | PDF ArticleMore Like This
Gregory J. Fiechtner, Galen B. King, Normand M. Laurendeau, and F. E. Lytle
Appl. Opt. 31(15) 2849-2864 (1992)
Gregory J. Fiechtner, Galen B. King, and Normand M. Laurendeau
Appl. Opt. 34(6) 1117-1126 (1995)
Gregory J. Fiechtner, Galen B. King, and Normand M. Laurendeau
Appl. Opt. 34(6) 1108-1116 (1995)