Two-wave mixing in reflection holograms in photorefractive materials

Polarization properties of self-diffraction in sillenite crystals: reflection volume gratings

“…The case of counterpropagating beams in which a reflection grating mediates the exchange of energy has attracted less attention. Two-beam interaction in this geometry has been analyzed by Yeh 2 for a BaTiO 3 crystal, by Ewbank et al 3 for a Rh-doped strontium barium niobate crystal, and by Erbschloe et al 4 for a LINbO 3 crystal. An important application of the contradirectional two-beam coupling is the generation of phaseconjugate waves by stimulated photorefractive backscattering.…”

Microscopic Interferometry by Reflection Holography with Photorefractive Sillenite Crystals

“…Salazar et al recorded a speckle pattern in sillenite crystals in a reflection holography configuration [26] in order to develop a four wave-mixing optical correlator through reflection holography [27]. Regarding recent applications of selenite crystals in reflection holography we can mention Erbschloe et al, which investigated the intensity and the phase of two optical beams in a photorefractive material, showing the implications of a reflection holography geometry [28]; Shepelevich et al investigated the dependence of maximum diffraction efficiency of volume reflection holograms recorded in BSO crystals [29]; Shandarov et al studied the interaction of two light waves in a network formed in a dynamic reflection holography scheme [30].…”

The Local Electric Field in Photorefractive and Other Semi-insulating Materials

“…In particular they have been used in experiments involving four-wave mixing (see, for example, Cronin-Golomb, Fischer, White and Yariv [3]), laser coupling [4][5][6][7][8][9], and dynamic holography [10][11][12] . Innovative technologies, such as the celebrated `novelty filter' [13], show much promise for the future of photorefractive materials .…”