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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 7 — Apr. 3, 2006
  • pp: 2831–2838

Parametric amplification of Raman-inactive lattice oscillations induced by two-color cross-beam excitation

Jun-ichi Takahashi  »View Author Affiliations

Optics Express, Vol. 14, Issue 7, pp. 2831-2838 (2006)

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The second-order Raman bands of SrTiO3 are excited under two-color cross-beam configuration using femto-second laser pulses. Raman-inactive one-phonon waves are generated by the coherently excited large amplitude two-phonon wave. The one-phonon waves are observed as a train of visible light spots, the frequency steps of which are coincident with the frequencies of the one-phonon modes. In order to understand the mechanism, a model of three-wave interaction among one two-phonon wave and two one-phonon waves is proposed.

© 2006 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4160) Nonlinear optics : Multiharmonic generation
(270.6570) Quantum optics : Squeezed states

ToC Category:
Nonlinear Optics

Original Manuscript: November 29, 2005
Revised Manuscript: March 23, 2006
Manuscript Accepted: March 25, 2006
Published: April 3, 2006

Jun-ichi Takahashi, "Parametric amplification of Raman-inactive lattice oscillations induced by two-color cross-beam excitation," Opt. Express 14, 2831-2838 (2006)

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