Modeling of critical enhancement of photorefractive response in cubic crystals

E. V. Podivilov; B. I. Sturman; K. H. Ringhofer; M. V. Gorkunov; V. P. Kamenov; H. C. Pedersen; P. M. Johansen

doi:10.1364/PEMD.2001.230

Photorefractive Effects, Materials, and Devices
OSA Trends in Optics and Photonics (Optica Publishing Group, 2001),
paper 230
•https://doi.org/10.1364/PEMD.2001.230

Modeling of critical enhancement of photorefractive response in cubic crystals

E. V. Podivilov, B. I. Sturman, K. H. Ringhofer, M. V. Gorkunov, V. P. Kamenov, H. C. Pedersen, and P. M. Johansen

Photorefractive Effects, Materials, and Devices 2001

Delavan, Wisconsin United States
ISBN: 1-55752-693-1

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E. V. Podivilov, B. I. Sturman, K. H. Ringhofer, M. V. Gorkunov, V. P. Kamenov, H. C. Pedersen, and P. M. Johansen, "Modeling of critical enhancement of photorefractive response in cubic crystals," in Photorefractive Effects, Materials, and Devices, G. Salamo and A. Siahmakoun, eds., Vol. 62 of OSA Trends in Optics and Photonics (Optica Publishing Group, 2001), paper 230.

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Abstract

We develop the idea of critical enhancement of the photorefractive response near the threshold of subharmonic generation (reported in Phys. Rev. Lett. 85, 1867, 2000) taking into account the real attributes of beam coupling in cubic crystals of the sillenite family. These are the vectorial character of beam coupling and a fairly strong longitudinal inhomogeneity of the pump intensity caused by light absorption. The results of our calculations are in optimization of the experimental conditions for detection of the critical enhancement and in description of its expected distinctive features.

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