title: Orientational dependence of photorefractive two-beam coupling in InP:Fe.
abstract: We present the theory for photorefractive two-beam coupling without optical activity in cubic crystals rotated around the [110] axis. We also describe two-beam coupling experiments in InP:Fe that fit the theory closely. The 15.5% gain enhancement for grating wave vectors aligned along the <111> directions is demonstrated explicitly.
authors.affiliation: Department of Physics, Williams College, Williamstown, Massachusetts 01267, USA.
authors.forename: J
authors.initials: J
authors.lastname: Strait
authors.forename: J D
authors.initials: JD
authors.lastname: Reed
authors.forename: N V
authors.initials: NV
authors.lastname: Kukhtarev