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Doppler-Limited Absorption and Fluorescence Spectroscopy with Lasers

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Laser Spectroscopy

Part of the book series: Springer Series in Chemical Physics ((CHEMICAL,volume 5))

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Abstract

After having presented in the previous chapter the different realizations of tunable lasers, we now discuss their applications in absorption and fluorescence spectroscopy. At first those methods where the spectral resolution is limited by the Doppler width of the molecular absorption lines will be treated. This limit can in fact be reached if the laser linewidth is small compared with the Doppler width. In several examples, such as optical pumping or laseri nduced fluorescence spectroscopy, mul timode 1 asers may be employed, al though in most cases single-mode lasers may be superior. In general, however, these lasers may not necessarily be frequency stabilized as long as the frequency jitter is small compared with the absorption linewidth. We compare several detection techniques of molecular absorption with regard to their sensitivity and their feasibility in the different spectral regions. Some examples illustrate the methods to give the reader a feeling of what has been achieved. After the discussion of the “Doppler-limited spectroscopy”, Chap.10 gives an extensive treatment of various techniques which allow sub-Doppler spectroscopy.

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  1. Fachbereich Physik, Universität Kaiserslautern, D-5760, Kaiserslautern, Fed. Rep. of Germany

    Professor Dr. Wolfgang Demtröder

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Demtröder, W. (1981). Doppler-Limited Absorption and Fluorescence Spectroscopy with Lasers. In: Laser Spectroscopy. Springer Series in Chemical Physics, vol 5. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-08257-7_8

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