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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 1 — Jan. 1, 2008
  • pp: 40–47

Four-wave parametric oscillation: theory and observations

Ken-ichi Harada, Nobuhito Hayashi, Kenji Mori, and Masaharu Mitsunaga  »View Author Affiliations


JOSA B, Vol. 25, Issue 1, pp. 40-47 (2008)
http://dx.doi.org/10.1364/JOSAB.25.000040


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Abstract

We present theoretically and experimentally a novel type of parametric fluorescence and oscillation in which four optical waves in off-axis, diagonal directions simultaneously build up under resonant counterpropagating pump-laser excitation in atomic sodium vapor. Two of the four are anti-Stokes shifted and the other two are Stokes shifted, and they are strongly coupled owing to electromagnetically induced diffraction. Theoretically, the Liouville–Maxwell equations are solved to derive four-wave propagation equations. Experimentally, we have observed four-wave parametric oscillation when a weak off-axis seed beam is introduced into otherwise axially symmetric parametric fluorescence patterns. Temporal waveforms are also analyzed, and strong correlations between any pairs of the four emissions are identified.

© 2008 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.2930) Atomic and molecular physics : Hyperfine structure
(270.1670) Quantum optics : Coherent optical effects
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6420) Spectroscopy : Spectroscopy, nonlinear

ToC Category:
Spectroscopy

History
Original Manuscript: June 5, 2007
Revised Manuscript: October 3, 2007
Manuscript Accepted: October 10, 2007
Published: December 19, 2007

Citation
Ken-ichi Harada, Nobuhito Hayashi, Kenji Mori, and Masaharu Mitsunaga, "Four-wave parametric oscillation: theory and observations," J. Opt. Soc. Am. B 25, 40-47 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-1-40

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