Angular dependence of the thermal-lens effect on LiSrAlF6 and LiSrGaF6 single crystals.

Steimacher, Alysson; Sakai, Otavio Akira; Bento, Antonio Carlos; Baesso, Mauro Luciano; Medina, Antonio N; Lima, Sandro Marcio; Catunda, Tomaz

Steimacher, Alysson; Sakai, Otavio Akira; Bento, Antonio Carlos; Baesso, Mauro Luciano; Medina, Antonio N; Lima, Sandro Marcio; Catunda, Tomaz.

Afiliação

Steimacher A; Departamento de Física, Universidade Estadual de Maringá, CEP 87020-900, Maringá, Paraná, Brazil.

Opt Lett ; 33(15): 1720-2, 2008 Aug 01.

Article em En | MEDLINE | ID: mdl-18670515

RESUMO

We apply thermal-lens (TL) spectrometry to measure the angular dependence of the TL effect on colquiriite single crystals. The experiments were performed with LiSrAlF(6) and LiSrGaF(6) using a two-beam mode-mismatched configuration. The results show that it is possible to minimize the TL effect by selecting the appropriate crystal orientation. Our data also show that the anisotropy of the linear thermal expansion coefficient drives the amplitude of the TL effect, including the inversion from focusing to defocusing as the crystal orientation angle tends to the c-axis direction. The results may be useful for those working to develop a high-power laser using LiSrAlF(6)(:Cr) and LiSrGaF(6)(:Cr) single crystals, allowing for optimization of the designed laser cavity.

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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Opt Lett Ano de publicação: 2008 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

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