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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. 24, Iss. 9 — Sep. 1, 2007
  • pp: 2172–2177

Optically stimulated electron–hole resonance in photorefractive CdTe with a low frequency ac field

A. V. Khomenko, A. López Navarro, M. García-Zárate, and K. Shcherbin  »View Author Affiliations


JOSA B, Vol. 24, Issue 9, pp. 2172-2177 (2007)
http://dx.doi.org/10.1364/JOSAB.24.002172


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Abstract

We report the results of an experimental and theoretical study of electron–hole competition in CdTe : Ge photorefractive crystal with an incoherent auxiliary illumination and alternating low-frequency field. Resonant two-wave mixing (TWM) gain enhancement is studied that has been found depending on the wavelength and intensity of the incoherent illumination. We show that a low-frequency ac field can be used for an effective TWM gain enhancement under conditions appropriate to the electron–hole resonance. A time oscillation of the photorefractive gain concerned with the ac field is studied experimentally, and self-generation of time subharmonics is reported.

© 2007 Optical Society of America

OCIS Codes
(160.5320) Materials : Photorefractive materials
(190.7070) Nonlinear optics : Two-wave mixing

ToC Category:
Materials

History
Original Manuscript: January 19, 2007
Revised Manuscript: May 10, 2007
Manuscript Accepted: May 20, 2007
Published: August 8, 2007

Citation
A. V. Khomenko, A. López Navarro, M. García-Zárate, and K. Shcherbin, "Optically stimulated electron-hole resonance in photorefractive CdTe with a low frequency ac field," J. Opt. Soc. Am. B 24, 2172-2177 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-9-2172

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