title: Photorefractive beam coupling in tin hypothiodiphosphate in the near infrared.
abstract: Infrared recording of phase gratings is investigated in Sn(2)P(2)S(6) crystals by radiation of a Nd(3+):YAG laser (lambda = 1.06 microm) Space-charge formation and hologram recording are dominated by diffusion charge transport. Without an applied electric field, but with preexposure of the sample to incoherent white light, the gain factor exceeds 6 cm(-1) at laser intensities above 50 W/cm(2).
authors.forename: S G
authors.initials: SG
authors.lastname: Odoulov
authors.forename: A N
authors.initials: AN
authors.lastname: Shumelyuk
authors.forename: U
authors.initials: U
authors.lastname: Hellwig
authors.forename: R A
authors.initials: RA
authors.lastname: Rupp
authors.forename: A A
authors.initials: AA
authors.lastname: Grabar