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Light-induced transmission nonlinearities in gallium selenide

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Light-induced transmission nonlinearities in gallium selenide

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dc.contributor.author	Ferrer Roca, Chantal
dc.contributor.author	Bouvier, Jaqueline
dc.contributor.author	Segura García del Río, Alfredo
dc.contributor.author	Andrés, Miguel V.
dc.contributor.author	Muñoz Sanjosé, Vicente
dc.date.accessioned	2010-06-03T07:43:46Z
dc.date.available	2010-06-03T07:43:46Z
dc.date.issued	1999
dc.identifier.citation	FERRER ROCA, Ch. ; BOUVIER, J. ; SEGURA, A. ; ANDRÉS, M.V. ; MUÑOZ, V. Light-induced transmission nonlinearities in gallium selenide. En: Journal of Applied Physics, 1999, vol. 85, no. 7 https://doi.org/10.1063/1.369748	en
dc.identifier.uri	http://hdl.handle.net/10550/12855
dc.description.abstract	The intensity of a He–Ne laser (633 nm, 5 mW) transmitted by different GaSe samples is observed to change in correlation with a Nd-yttrium–aluminum–garnet laser pulse (532 nm, 7.8 ns, 3 mJ) which excites them. Such time response has been attributed to a nonlinear optical effect, i.e., a decrease in the refractive index due to the exciton screening by the photogenerated carriers. A calculation of the absorption coefficient and refractive index at different carrier concentrations has led to a reconstruction of transmittance transients which fully agree with the experimental data at different incident intensities and temperatures.	en_US
dc.language.iso	en	en
dc.subject	Gallium compounds ; III-VI semiconductors ; Nonlinear optics ; Light transmission ; Refractive index ; Excitons ; Absorption coefficients ; Carrier density	en
dc.title	Light-induced transmission nonlinearities in gallium selenide	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::FÍSICA	en
dc.identifier.doi	10.1063/1.369748	en
dc.identifier.doi	10.1063/1.369748
dc.identifier.idgrec	081088
dc.type.hasVersion	VoR	es_ES