Doppler-free resonant two-photon transition for isotope separation |
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Authors: | Koichi Shimoda |
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Institution: | (1) Institute of Physical and Chemical Research, 351 Wako-shi, Saitama, Japan;(2) Department of Physics, University of Tokyo, Bunkyo-ku, 113 Tokyo, Japan |
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Abstract: | The Doppler-free two-photon transition by the use of two opposing laser beams makes the highly selective excitation of isotopic
molecules possible. Saturation and pressure dependence of Doppler-free two-photon excitation with arbitrary amplitudes of
the optical fields have been calculated and compared with those of the two-step transition and the single-photon transition.
The result at the Doppler limit for low pressure gas reveals that the probability of the selective two-photon excitation with
a moderate laser power can be larger than that of the single-photon excitation as well as that of the two-step excitation. |
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Keywords: | 32 82 |
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