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Type: Artigo de periódico
Title: Direct near infrared photorefractive recording and pre-exposure controlled hole-electron competition with enhanced recording in undoped Bi12TiO20
Author: dos Santos, PV
Frejlich, J
Carvalho, JF
Abstract: We report the direct recording of electron-based photorefractive hologram in nominally undoped Bi12TiO20 crystals using 780 nm wavelength light without pre-exposure or any kind of previous processing. A lower intensity absorption grating is also detected. Pre-exposure with shorter wavelength produces an extended lifetime hole-based complementary grating on another photoactive center level and leads to enhanced recording.
Country: EUA
Editor: Springer
Citation: Applied Physics B-lasers And Optics. Springer, v. 81, n. 5, n. 651, n. 655, 2005.
Rights: fechado
Identifier DOI: 10.1007/s00340-005-1935-x
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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