Agradecimentos: We acknowledge partial financial support from the Conselho de Desenvolvimento Cientifico e Tecnologico (CNPq), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Fundo de Apoio ao Ensino, Pesquisa e Extensao (FAEPEX/UNICAMP), and Coordenacao de Aperfeicoamento de Pessoal...

Agradecimentos: We acknowledge partial financial support from the Conselho de Desenvolvimento Cientifico e Tecnologico (CNPq), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Fundo de Apoio ao Ensino, Pesquisa e Extensao (FAEPEX/UNICAMP), and Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) all from Brazil

Abstract: We report on the nonlinear relation between the resonance hologram velocity and the recording light irradiance in fringe-locked running hologram experiments carried out on a nominally undoped photorefractive Bi12TiO20 crystal using 532 nm wavelength laser light. Such nonlinearity is due to...

Abstract: We report on the nonlinear relation between the resonance hologram velocity and the recording light irradiance in fringe-locked running hologram experiments carried out on a nominally undoped photorefractive Bi12TiO20 crystal using 532 nm wavelength laser light. Such nonlinearity is due to the dependence of the material diffusion length on the light irradiance. Experimental data show a good agreement with the theoretical equations thus supporting the mathematical model here reported and allowing to compute the quantum efficiency for photoelectron generation, the dependence of the diffusion length upon the recorded light irradiance, and the far from saturation diffusion length

CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP

COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES

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