Semiclassical theory of two-photon induced Raman scattering

W. H. Louisell, Pierre Meystre

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Stimulated two-photon induced Raman scattering (hyper-Raman scattering) in an amplifier consisting of four-level atoms is analyzed semiclassically, via the coupled density matrix and Maxwell equations. We consider conditions typically encountered in the optical regime and in vapors. We show that even in the linear regime, it is characterized by a significant depletion of the atomic ground-state population, thus invalidating perturbative analyses based, for instance, on the nonlinear susceptibility tensor. Two major regimes of operation are found, one in which the population is completely consumed by the interaction ("linear regime"), and one in which the pump laser is depleted ("nonlinear regime"). Both regimes are, however, characterized by small photon conversion efficiencies. The tuning range is also briefly discussed.

Original languageEnglish (US)
Pages (from-to)1015-1025
Number of pages11
JournalPhysical Review A
Volume23
Issue number3
DOIs
StatePublished - 1981
Externally publishedYes

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Raman spectra
photons
Maxwell equation
depletion
amplifiers
tuning
tensors
vapors
pumps
magnetic permeability
ground state
lasers
atoms
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Semiclassical theory of two-photon induced Raman scattering. / Louisell, W. H.; Meystre, Pierre.

In: Physical Review A, Vol. 23, No. 3, 1981, p. 1015-1025.

Research output: Contribution to journalArticle

Louisell, W. H. ; Meystre, Pierre. / Semiclassical theory of two-photon induced Raman scattering. In: Physical Review A. 1981 ; Vol. 23, No. 3. pp. 1015-1025.
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