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Time averaging by means of a computer controlled dye-laser spectrometer

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Abstract

The noise characteristic of available laser sources limits the sensitivity of saturated absorption spectroscopy. Time averaging is one method to improve the signal-to-noise ratio. A computer controlled dye-laser spectrometer is described which has the capability to scan several times any selected frequency range with an absolute accuracy of ±200 kHz. The sensitivity of this system is demonstrated by measuring the isotope shift of the low abundant38Ar and by detecting a weak83Kr-hyperfine component.

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Authors and Affiliations

  1. Institut für Atom- und Festkörperphysik, Freie Universität Berlin, D-1000, Berlin 33

    H. Gerhardt, F. Jeschonnek, W. Makat, F. Schneider, A. Timmermann, R. Wenz & P. J. West

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  1. H. Gerhardt
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  2. F. Jeschonnek
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  3. W. Makat
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  4. F. Schneider
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  5. A. Timmermann
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  6. R. Wenz
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  7. P. J. West
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Gerhardt, H., Jeschonnek, F., Makat, W. et al. Time averaging by means of a computer controlled dye-laser spectrometer. Appl. Phys. 22, 361–364 (1980). https://doi.org/10.1007/BF00901057

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  • DOI: https://doi.org/10.1007/BF00901057

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