Abstract
A simple formalism is given to allow for intensity correction and background suppression in absorption spectroscopy with pulsed lasers. By experimental examples the online application with a microcomputer is demonstrated, and the computer is also used for analyzing the correlation between signal and reference channels. The optimization of the correlation and the intensity correction yields a gain of a factor of about 30 in the signal-tonoise ratio of the recorded spectra compared to conventional absorption experiments. Spectral lines were observed, which would not be detectable by fluorescence technique.
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References
W. Demtröder:Laser Spectroscopy, Springer Ser. Chem. Phys.5, (Springer, Berlin, Heidelberg 1982)
U. Wolf, D. Bender, S.H. Schaefer, E. Tiemann: Chem. Phys. (in press)
U. Wolf, E. Tiemann: In preparation
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Wolf, U., Tiemann, E. Improved absorption spectroscopy with pulsed lasers. Appl. Phys. B 39, 35–42 (1986). https://doi.org/10.1007/BF00695590
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DOI: https://doi.org/10.1007/BF00695590