Abstract
It is shown that a moving intensity grating in a photorefractive crystal with a sufficiently large lifetimemobility product can give rise to an instability against excitation of weakly damped space-charge waves. Increments and threshold of the instability are investigated for the threedimensional case. Subharmonics and other nonlinear scenarios of saturation are discussed.
Similar content being viewed by others
References
N.V. Kukhtarev, V.B. Markov, S.G. Odulov, M.S. Soskin, V.L. Vinetskii: Holographic storage in electrooptic crystals. Ferroelectrics 22, 949–960; 961–964 (1979)
Ph. Refrigier, L. Solymar, H. Rajbenbach, J.P. Huignard: Two-beam coupling in photorefractive Bi12SiO20 crystals with moving grating: Theory and experiments. J. Appl. Phys. 58, 45–57 (1985)
E. Ochoa, F. Vachss, L. Hesselink: Higher-order analysis of the photorefractive effect for large modulation depths. J. Opt. Soc. Am. A 3, 181–187 (1986)
R. Saxena, T.Y. Chang: Perturbation analysis of higher order photorefractive gratings. J. Opt. Soc. Am. B (1992) (in press)
S. Mallick, B. Imbert, H. Ducollet, J.P. Herriau, J.P. Huignard: Generation of spatial subharmonics by two-wave mixing in a nonlinear photorefractive medium. J. Appl. Phys. 63, 5660–5663 (1988)
D.J. Webb, L. Solymar: Observations of spatial subharmonics arising during two-wave mixing in BSO. Opt. Commun. 74, 386–389 (1990)
D.J. Webb, L.B. Au, D.C. Jones, L. Solymar: Onset of subharmonics generated by forward wave interactions in Bi12SiO20. Appl. Phys. Lett. 57, 1602–1604 (1990)
J. Takacs, L. Solymar: Observation of split subharmonics in a Bi12SiO20 crystal. Unpublished (1991)
B. Sturman, A. Bledowski, J. Otten, K.H. Ringhofer: Subharmonics in photorefractive crystals. Sov. JETP 102(8) (1992) (in Russian)
V.E. Zakharov, S.L. Musher, A.M. Rubenchik: Hamiltonian approach to the description of non-linear plasma phenomena. Phys. Rep. 129, 285–366 (1985)
D.R. Nicholson: Introduction to plasma theory (New York 1983)
P. Günter, J.-P. Huignard (eds.): Photorefractive Materials and Their Applications I, II, Topics Appl. Phys. Vols. 61, 62 (Springer, Berlin, Heidelberg 1988, 1989)
J.P. Herriau, D. Rojas, J.P. Huignard, J.M. Bassat, J.P. Launay: Highly efficient diffraction in photorefractive BSO-BGO crystals at large applied fields. Ferroelectrics 75, 271–279 (1987)
G.C. Valley, H. Rajbenbach, H.J. von Bardeleben: Mobility-lifetime product of photoexcited electrons in GaAs. Appl. Phys. Lett. 56, 364–366 (1990)
B. Sturman, A. Bledowski, J. Otten, K.H. Ringhofer: Spatial subharmonics in photorefractive crystals. J. Opt. Soc. Am. B 9, 672–681 (1992)
L.L. Landau, E.M. Lifshitz: Mechanics (Pergamon, New York 1969)