Spectroscopic properties of Tb3+-doped lead zinc phosphate glass for green solid state laser

Autor(es)

Reza Dousti, M. ^[1] ; Amjad, Raja J. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP - Brazil

^[2] COMSATS Inst Informat Technol, Dept Phys, Lahore 54000 - Pakistan

• Tipo de documento: Artigo Científico
• Fonte: Journal of Non-Crystalline Solids; v. 420, p. 21-25, JUL 15 2015.
• Citações Web of Science: 20

Resumo

This work reports the spectroscopic properties of a new Tb3+-doped zinc lead phosphate glass, prepared by a conventional melt-quenching technique. Glasses show good rare earth solubility and high thermal stability. Optical properties of the glasses are studied by absorption, photoluminescence excitation and emission spectroscopy and lifetime measurement. Several luminescence bands of Tb3+ ions are observed under 376 nm excitation wavelength in 400-650 nm spectral region. The green to blue intensity ratio increases by concentration of terbium ions up to 5 mol%. The lifetime of the 5121 excited state was found to be 2.70 to 2.54 ms for low and high concentration of dopant ions, respectively. The strong green emission of the studied glasses with large experimental branching ratio highlights their capability as solid state green lasers. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 13/24064-8 - Estudos estruturais e fotofísicos de vidros fosfato de tungstênio dopados com íons terras raras e nanopartículas metálicas
• Beneficiário: Mohammad Reza Dousti
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado