White random laser based on a Ho3+/Tm3+/Yb3+ doped GeO2-PbO glass
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Journal of Luminescence
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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 (∼480 nm), green (∼547 nm) and red (∼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.
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DIPOLD, JESSICA; ARAUJO, CID B. de; KASSAB, LUCIANA R.P.; WETTER, NIKLAUS U. White random laser based on a Ho3+/Tm3+/Yb3+ doped GeO2-PbO glass. Journal of Luminescence, v. 288, p. 1-5, 2025. DOI: 10.1016/j.jlumin.2025.121540. Disponível em: https://repositorio.ipen.br/handle/123456789/49403. Acesso em: 20 Mar 2026.
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