Experimental study of the transverse spatial dependence of thermally induced absorptive bistability

• Tipo: Artigo em Revista Científica Internacional
• Data: 1999

Autores

Pereira, F (Autor) FEUP; Salcedo, JR (Autor) FCUP; Belsley, M (Autor) Outra

Revista

Título: Journal of the Optical Society of America B: Optical Physics

Vol. 16

Páginas: 228-235

ISSN: 0740-3224

Editora: Optical Society of America

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 4 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-001-57A

DOI: 10.1364/josab.16.000228

Abstract (EN): We have characterized the transverse spatial dependence of the real and the imaginary Darts of the complex nonlinear refractive index of a semiconductor-doped glass filter that exhibits absorptive bistability. Using the Z-scan technique combined with an interferometric measurement of the integrated optical thickness, we are able to fit the observed experimental data, assuming a quadratically varying transverse temperature profile in the sample. The transverse variations in the nonlinear refractive index do not scale directly with the size of the incident beam but exhibit marked asymmetries that depend on whether the incident beam is converging or diverging. (C) 1999 Optical Society of America [S0740-3224(99)01802-0].

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8