Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/86097
Type: Artigo de periódico
Title: Holographic Recording And Characterization Of Photorefractive Bi 2teo5 Crystals At 633 Nm Wavelength Light
Author: De Oliveira I.
Carvalho J.F.
Fabris Z.V.
Frejlich J.
Abstract: We report on the holographic recording on photorefractive Bi 2TeO5 crystals using λ=633 nm wavelength light. We studied the behavior of this material under the action of this low photonic energy light and found out the presence of a fast and a slow hologram, both of photorefractive nature and exhibiting rather high diffraction efficiencies. The faster and the slower holograms are based on the excitation and diffusion of oppositely charged carriers (likely electrons and holes). Relevant parameters for the photoactive centers responsible for both kind of holograms were characterized using purely holographic techniques. No evidences of non-photosensitive ionic charge carriers being involved in the recording process at room temperature nor self-fixing effects were found. © 2014 AIP Publishing LLC.
Editor: American Institute of Physics Inc.
Rights: aberto
Identifier DOI: 10.1063/1.4871807
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84900014134&partnerID=40&md5=be86c3f4b79a4c813a3ca783e7b69c86
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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