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Atmospheric and Oceanic Optics

, Volume 22, Issue 3, pp 264–272 | Cite as

Inversionless generation of radiation in stimulated Raman and hyper-Raman scattering at allowed transitions in atoms

  • V. P. Kochanov
Environmental Spectroscopy
  • 19 Downloads

Abstract

The theory of stimulated Raman and hyper-Raman scattering involving resonance transitions to the ground states of atoms is presented, where the atoms are modeled by the three-level cascade quantum system. The possibility of efficient inversionless generation of radiation is shown for all three transitions participating in the stimulated Raman scattering and for the two electric-dipole allowed transitions in the hyper-Raman scattering. The existence conditions for such generation are determined depending on intensities of the three waves participating in closed-loop wave mixing, their total phase, and pump frequency detuning from the frequency of the dipole-forbidden transition. A new method of remote sensing of atomic components of the atmosphere based on inversionless generation is proposed, which may have significantly higher detection sensitivity as compared to traditional fluorescence technique.

Key words

generation of radiation Raman scattering population inversion resonant transitions 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • V. P. Kochanov
    • 1
  1. 1.Zuev Institute of Atmospheric Optics, Siberian BranchRussian Academy of SciencesTomskRussia

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