Sign of the dominant charge carriers in photorefractive crystals determined by a phase-locked holographic technique

Página do item simplificado
dc.contributor.authorFreschi, A. A.
dc.contributor.authorCallegari, F. A.
dc.contributor.authorDe Vicente, F. S. [UNESP]
dc.contributor.authorGesualdi, M. R.R.
dc.contributor.institutionUniversidade Federal do ABC (UFABC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:58:09Z
dc.date.available2018-12-11T16:58:09Z
dc.date.issued2015-01-01
dc.description.abstractThis work presents a holographic method based on active feedback techniques for determining the sign of the dominant charge carriers in photorefractive materials. A two-step procedure is proposed: first off a stationary phase-locked hologram is recorded; an electric field normal to the grating layers is then applied to the material, thus producing a running hologram. The sign of the charge carriers is determined by comparing the direction of the applied field with the direction of the hologram movement, which is known through the automatically attached light pattern. The method can be applied from highly photoconductive to highly insulating materials. Furthermore, no information on any material parameter is required. The method is validated by a set of holographic experiments using a Bi<inf>12</inf>TiO<inf>20</inf> crystal that has electrons as the majority photocarriers.en
dc.description.affiliationUFABC - Univ Federal Do ABC, Centro de Engenharia (CECS), Avenida dos Estados 5001
dc.description.affiliationUNESP, Univ Estadual Paulista, Departamento de Física (IGCE), Caixa Postal 178
dc.description.affiliationUnespUNESP, Univ Estadual Paulista, Departamento de Física (IGCE), Caixa Postal 178
dc.format.extent247-251
dc.identifierhttp://dx.doi.org/10.1016/j.optmat.2015.08.007
dc.identifier.citationOptical Materials, v. 48, p. 247-251.
dc.identifier.doi10.1016/j.optmat.2015.08.007
dc.identifier.file2-s2.0-84940037028.pdf
dc.identifier.issn0925-3467
dc.identifier.scopus2-s2.0-84940037028
dc.identifier.urihttp://hdl.handle.net/11449/172018
dc.language.isoeng
dc.relation.ispartofOptical Materials
dc.relation.ispartofsjr0,592
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCharge carrier
dc.subjectFeedback system
dc.subjectHologram
dc.subjectPhase control
dc.subjectPhotoconductivity
dc.subjectPhotorefractive
dc.titleSign of the dominant charge carriers in photorefractive crystals determined by a phase-locked holographic techniqueen
dc.typeArtigo

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
2-s2.0-84940037028.pdf
Tamanho:
425.83 KB
Formato:
Adobe Portable Document Format
Descrição:
Baixar

Coleções

Artigos - Física - IGCE