Influence of the fraction of absorbed pump power on the performance of Nd3+:YVO4 powder random lasers
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2018
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OPTICAL COMPONENTS AND MATERIALS, 15th
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Resumo
Understanding light absorption in random lasers and its distribution within the scattering gain media is a key issue to
increase the lasers’ efficiency. Here we compare monodispersed and polydispersed powders of Nd3+:YVO4 and
investigate the influence of the powder size distribution on scattering mean free path, absorption volume and, eventually,
the lasers efficiency. The highest efficiency is achieved for polydispersed powders and we conjecture that these
polydispersed powders, composed of pockets containing small grains trapped between large particles, present locally
higher pump power densities than the monodispersed powders. We establish a figure of merit, based on measurable
powder parameters, that agrees well with the obtained output power results of the monodispersed and polydispersed
samples.
Como referenciar
WETTER, NIKLAUS U.; SILVA, DANILO A.A. da; JIMENEZ-VILLAR, ERNESTO; GIEHL, JULIA M. Influence of the fraction of absorbed pump power on the performance of Nd3+:YVO4 powder random lasers. In: JIANG, SHIBIN (ed.); DIGONNET, MICHEL J.F. (ed.). In: OPTICAL COMPONENTS AND MATERIALS, 15th, January 27 - February 01, 2018, San Francisco, California, USA. Proceedings... Bellingham, WA, USA: Society of Photo-optical Instrumentation Engineers, 2018. p. 105281U-1 - 105281U-8. (SPIE Proceedings Series, 10528). DOI: 10.1117/12.2290674. Disponível em: http://repositorio.ipen.br/handle/123456789/29164. Acesso em: 24 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.