1337 nm Emission of a Nd3+-Doped TZA Glass Random Laser

Autor(es)

Dipold, Jessica ; Bordon, Camila D. S. ; Magalhaes, Evellyn S. ; Kassab, Luciana R. P. ; Jimenez-Villar, Ernesto ; Wetter, Niklaus U.

• Tipo de documento: Artigo Científico
• Fonte: NANOMATERIALS; v. 13, n. 13, p. 11-pg., 2023-07-01.

Resumo

Random lasers have been studied using many materials, but only a couple have used glass matrices. Here, we present a study of zinc tellurite and aluminum oxide doped with different percentages of neodymium oxide (4 wt.%, 8 wt.%, and 16 wt.%) and demonstrate for the first time random laser action at 1337 nm. Laser emission was verified and the laser pulse's rise time and input-output power slope were obtained. A cavity composed of the sample's pump surface and an effective mirror formed by a second, parallel layer at the gain-loss boundary was probably the main lasing mechanism of this random laser system. The reason for the absence of emission at 1064 nm is thought to be a measured temperature rise in the samples' active volume. (AU)

• Processo FAPESP: 19/06334-4 - Dispositivos laser em sistemas microfluídicos para laboratórios de bolso descartáveis
• Beneficiário: Jessica Dipold
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/10765-5 - Lasers com alta eficiência e baixo limiar de operação em meios espalhadores e transparentes
• Beneficiário: Niklaus Ursus Wetter
• Modalidade de apoio: Auxílio à Pesquisa - Regular