Phys. Rev. Lett. 62, 1110–1113 (1989)New nonphotorefractive mechanism for two-beam coupling in a crystallographic-cut photorefractive crystalReceived 29 November 1988; published in the issue dated 6 March 1989 An unexpected two-beam coupling energy exchange has been observed in Bi12SiO20 without normal (electro-optic) photorefractive effects, using circularly polarized light and a frequency shift of a few hertz or using nonparallel linearly polarized light and no frequency shift. Two-beam coupling based on a photoinduced optical-activity phase grating explains this behavior. © 1989 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.62.1110
DOI:
10.1103/PhysRevLett.62.1110
PACS:
42.65.Ma
See AlsoComment: S. I. Stepanov, Comment on ‘‘New nonphotorefractive mechanism for two-beam coupling in a crystallographic-cut photorefractive crystal’’, Phys. Rev. Lett. 65, 935 (1990). |
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