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

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Author(s):	Dipold, Jessica ; Bordon, Camila D. S. ; Magalhaes, Evellyn S. ; Kassab, Luciana R. P. ; Jimenez-Villar, Ernesto ; Wetter, Niklaus U. Total Authors: 6
Document type:	Journal article
Source:	NANOMATERIALS; v. 13, n. 13, p. 11-pg., 2023-07-01.
Abstract
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)

FAPESP's process:	19/06334-4 - Advanced photonic devices for microfluidic systems: random lasers
Grantee:	Jessica Dipold
Support Opportunities:	Scholarships in Brazil - Post-Doctoral


FAPESP's process:	17/10765-5 - Highly efficient low threshold lasers in transparent and scattering media.
Grantee:	Niklaus Ursus Wetter
Support Opportunities:	Regular Research Grants