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Proceedings Paper

Holographic recording in photorefractive Bi2TeO5 crystals at high intensity
Author(s): Ivan de Oliveira; Jesiel F. Carvalho; Zanine V. Fabris; Jaime Frejlich
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Paper Abstract

We report the recording of nearly 35% diffraction efficiency holograms of photorefractive nature in Bi2TeO5 crystals, using 633 nm wavelength laser beams. Holographic techniques showed that a slow and a fast holograms arise, the latter based on electrons and the former based on positively charged carriers. We also measured the quantum efficiency for photoelectron generation and the characteristic diffusion (LD) and Debye (ls) lengths of these holograms and verified that LD and ls are modified as the light intensity onto the crystal increases, in agreement with previously reported theoretical prediction and experimental results but on other photorefractive material.

Paper Details

Date Published: 18 November 2013
PDF: 6 pages
Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 87852N (18 November 2013); doi: 10.1117/12.2025573
Show Author Affiliations
Ivan de Oliveira, Univ. Estadual de Campinas (Brazil)
Jesiel F. Carvalho, Univ. Federal de Goías (Brazil)
Zanine V. Fabris, Univ. Federal de Goías (Brazil)
Jaime Frejlich, Univ. Estadual de Campinas (Brazil)


Published in SPIE Proceedings Vol. 8785:
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
Manuel Filipe P. C. Martins Costa, Editor(s)

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