Applied physics

, Volume 9, Issue 3, pp 239–246 | Cite as

Doppler-free resonant two-photon transition for isotope separation

  • Koichi Shimoda
Contributed Papers


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.

PACS Codes

32 82 


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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • Koichi Shimoda
    • 1
    • 2
  1. 1.Institute of Physical and Chemical ResearchWako-shi, SaitamaJapan
  2. 2.Department of PhysicsUniversity of TokyoTokyoJapan

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