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Applied Optics

Applied Optics


  • Vol. 43, Iss. 5 — Feb. 10, 2004
  • pp: 1167–1173

Slowdown of group velocity of light by means of phase coupling in photorefractive two-wave mixing

Guoquan Zhang, Rong Dong, Fang Bo, and Jingjun Xu  »View Author Affiliations

Applied Optics, Vol. 43, Issue 5, pp. 1167-1173 (2004)

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We show theoretically that the group velocity of light can be slowed down by means of phase coupling in the photorefractive two-wave mixing process. It is shown that the group velocity of light propagating in a photorefractive material could be significantly reduced because of a steep variation of the phase-coupling coefficient with respect to the angular frequency difference between two coupling beams in a two-wave mixing process. The results for the case of a photorefractive Bi12SiO20 crystal are presented and discussed in detail.

© 2004 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(060.5060) Fiber optics and optical communications : Phase modulation
(190.5330) Nonlinear optics : Photorefractive optics
(190.7070) Nonlinear optics : Two-wave mixing

Original Manuscript: May 6, 2003
Revised Manuscript: September 23, 2003
Published: February 10, 2004

Guoquan Zhang, Rong Dong, Fang Bo, and Jingjun Xu, "Slowdown of group velocity of light by means of phase coupling in photorefractive two-wave mixing," Appl. Opt. 43, 1167-1173 (2004)

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