Autor(es)

Dipold, Jessica ; de Araujo, Cid B. ; Kassab, Luciana R. P. ; Wetter, Niklaus U.

• Tipo de documento: Artigo Científico
• Fonte: Journal of Luminescence; v. 288, p. 5-pg., 2025-12-25.

Resumo

A white Random Laser based on Ho3+/Tm3+/Yb3+ doped GeO2-PbO glass system was developed. By varying the excitation laser wavelength between 974 and 976 nm, emissions spanning blue (similar to 480 nm), green (similar to 547 nm) and red (similar to 660 nm) wavelengths were obtained. The three colors emitted presented random laser behavior, evaluated by the emission intensity spectra measured by changing the excitation laser energy. White light emission was confirmed through analysis of the CIE 1931 chromaticity diagram with coordinates consistently falling within the white light region. To our knowledge, this is the first white Random Laser based on a glass doped with rare-earth ions. (AU)

• 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
• 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