Determination of a dose-like curve for active colour centres produced in LiF single crystals by ultrashort high intensity laser pulses and a preliminary investigation of their spectral and spatial properties by confocal and atomic microscopies

Determination of a dose-like curve for active colour centres produced in LiF single crystals by ultrashort high intensity laser pulses and a preliminary investigation of their spectral and spatial properties by confocal and atomic microscopies

Autor Courrol, L. C. Autor UNIFESP Google Scholar
Samad, R. E. Google Scholar
Martinez, O. E. Google Scholar
Gomes, L. Google Scholar
Ranieri, I. M. Google Scholar
Baldochi, S. L. Google Scholar
Freitas, A. Z. de Google Scholar
Vieira Junior, N. D. Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
IPEN CNEN SP
Univ Buenos Aires
Resumo In this paper, the spatial and spectral properties of colour centres produced in LiF single crystals by ultrashort high intensity laser pulses are reported. the emission spectra of the centres were measured conventionally and also by confocal microscopy. A large amount of F centres that gave rise to aggregates such as F(2), F(4), F(2)(+) and F(3)(+) could be identified, showing a microscopic homogeneous distribution. the coloured surfaces were also spatially characterized by atomic force microscopy, and the images show the presence of defects on the modified surface. the formation of micrometric and sub-micrometric structures was observed and related to filamentation processes.
Palavra-chave colour centres
ultrafast phenomena
waveguides
LiF
Idioma Inglês
Financiador Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Número do financiamento FAPESP: 00/15135-9
Data de publicação 2008-10-01
Publicado em Journal of Optics A-pure and Applied Optics. Bristol: Iop Publishing Ltd, v. 10, n. 10, 5 p., 2008.
ISSN 1464-4258 (Sherpa/Romeo, fator de impacto)
Publicador Iop Publishing Ltd
Extensão 5
Fonte http://dx.doi.org/10.1088/1464-4258/10/10/104023
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000259700100024
Endereço permanente http://repositorio.unifesp.br/handle/11600/30955

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