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Optics Communications

Difference-frequency conversion of λ =1.06 μm Nd: YAG laser radiation in two-photon dye-laser resonantly pumped Rb vapor

Vasily G. Arkhipkin, A. K. Popov, V. P. Timofeev

Published Apr 1, 1978• 1 citation
Publisher
DOI
10.1016/0030-4018(78)90101-3

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We report a simple theoretical model for the calculation of the dependence of filter quantum efficiency versus laser pump power in an atomic Rb vapor laser-excited optical filter. We present the calculations for a 532.4-nm Rb filter that can be used to detect the practical and important frequency-doubled Nd:YAG laser. The results of these calculations show that the filter's quantum efficiency is relatively insensitive to the laser pump power. The laser powers required to pump the filter range from 3.6 to 226 mW per square centimeter of filter aperture.

Optics Letters•Jun 1, 1988•13 citations
Frequency conversion of cw CO 2 laser radiation to the 276.8 nm ultraviolet range was achieved in a mixture of thallium and cesium vapor by parametric mixing with radiation from a rhodamine 6G dye laser. Two-photon resonance of the pump radiation with the 6 P 1/2 –7 P 3/2 forbidden transition and the proximity of the converted radiation frequency to the frequency of the 6 D 3/2 –7 P 3/2 transition in the thallium atom were utilized. Cesium vapor was used to match the refractive indices of the interacting waves.
We report a simple theoretical model for the calculation of the dependence of filter quantum efficiency versus laser pump power in an atomic Rb vapor laser-excited optical filter. We present the calculations for a 532.4-nm Rb filter that can be used to detect the practical and important frequency-doubled Nd:YAG laser. The results of these calculations show that the filter's quantum efficiency is relatively insensitive to the laser pump power. The laser powers required to pump the filter range from 3.6 to 226 mW per square centimeter of filter aperture.