@inproceedings{6ed7511d883a49cebd2e1996ce7d4e2d,
title = "Specific intensity profiles for designed light-induced index distributions in photorefractive crystals",
abstract = "The anisotropic features of the refractive index changes induced by a Gaussian beam and a top-flat square beam with different orientations are investigated both theoretically and experimentally. After that, an approach to obtain designed index distributions in photorefractive crystals by illuminations of light beams with specific intensity profiles is presented. By solving the reversed problem of the photorefractive process, the intensity distributions of the writing beams for obtaining a preassigned index profiles can be derived. Employing the writing beams with specific intensity profiles, various designed index distributions could be obtained. Gaussian type index distributions with circular symmetry are experimentally demonstrated in a slice of LiNbO3:Fe crystal by employing specific writing beams formed by the aid of a projector.",
author = "Peng Zhang and Jianlin Zhao and Yidong Sun and Honglai Xu and Dexing Yang",
year = "2005",
language = "英语",
isbn = "1557527938",
series = "Optics InfoBase Conference Papers",
publisher = "Optical Society of America",
pages = "802--806",
booktitle = "Photorefractive Effects, Materials, and Devices, PEMD 2005",
note = "Photorefractive Effects, Materials, and Devices, PEMD 2005 ; Conference date: 19-07-2005 Through 19-07-2005",
}