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A tunable UV-light source for laser spectroscopy using second harmonic generation in β-BaB2O4

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Abstract

A β-BaB2O4 (BBO) crystal is used to generate UV-light tunable in the range 230–303 nm by frequency doubling of an excimer-laser-pumped dye laser. This interval can be covered by a series of continuous scans of 0.25 nm (in the UV). During each scan the β-BaB2O4 phase-matching angle is synchronized with the rotation of grating and etalon in the dye laser. The bandwidth of the frequency-doubled light is about 2 or 4 GHz depending on the dye laser etalon. The application is illustrated by a section of the one-photon excitation spectrum of Li2 Rydberg molecules.

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Authors and Affiliations

  1. Fachbereich Physik der Universität Kaiserslautern, D-6750, Kaiserslautern, Fed. Rep. Germany

    H. J. Müschenborn, W. Theiß & W. Demtröder

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  1. H. J. Müschenborn
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  2. W. Theiß
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  3. W. Demtröder
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Müschenborn, H.J., Theiß, W. & Demtröder, W. A tunable UV-light source for laser spectroscopy using second harmonic generation in β-BaB2O4 . Appl. Phys. B 50, 365–369 (1990). https://doi.org/10.1007/BF00325088

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  • DOI: https://doi.org/10.1007/BF00325088

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