Influence of the fraction of absorbed pump power on the performance of Nd3+:YVO4 powder random lasers

dc.contributorJIANG, SHIBIN
dc.contributorDIGONNET, MICHEL J.F.
dc.creatorWETTER, NIKLAUS U.
dc.creatorSILVA, DANILO A.A. da
dc.creatorJIMENEZ-VILLAR, ERNESTO
dc.creatorGIEHL, JULIA M.
dc.creatorOPTICAL COMPONENTS AND MATERIALS, 15th
dc.date2018-09-19T16:43:44Z
dc.date2018-09-19T16:43:44Z
dc.dateJanuary 27 - February 01, 2018
dc.date.accessioned2023-09-28T14:08:21Z
dc.date.available2023-09-28T14:08:21Z
dc.identifierhttp://repositorio.ipen.br/handle/123456789/29164
dc.identifier10.1117/12.2290674
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8999407
dc.descriptionUnderstanding 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.
dc.format105281U-1 - 105281U-8
dc.publisherSociety of Photo-optical Instrumentation Engineers
dc.relationSPIE Proceedings Series, 10528
dc.rightsopenAccess
dc.subjectlasers
dc.subjectrandomness
dc.subjectlight scattering
dc.subjectneodymium lasers
dc.subjectyttrium compounds
dc.subjectscanning electron microscopy
dc.subjectpowders
dc.subjectemission spectra
dc.titleInfluence of the fraction of absorbed pump power on the performance of Nd3+:YVO4 powder random lasers
dc.typeTexto completo de evento
dc.coverageI
dc.localBellingham, WA, USA


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