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Laser-induced lensing effects in solid-state optical refrigerators

Silva, J. R. ; Andrade, L. H. C. ; Lima, S. M. ; Hehlen, M. P. ; Guyot, Y. ; Medina, A. N. ; Malacarne, L. C. ; Baesso, M. L. ; Astrath, N. G. C.

Applied physics letters, 2013-04, Vol.102 (14) [Periódico revisado por pares]

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Título:
Laser-induced lensing effects in solid-state optical refrigerators
Autor: Silva, J. R. ; Andrade, L. H. C. ; Lima, S. M. ; Hehlen, M. P. ; Guyot, Y. ; Medina, A. N. ; Malacarne, L. C. ; Baesso, M. L. ; Astrath, N. G. C.
Assuntos: Physics
É parte de: Applied physics letters, 2013-04, Vol.102 (14)
Descrição: Laser-induced thermal and population lensing effects in solid-state optical refrigerator materials are quantitatively evaluated. Time-resolved lensing transients in Yb3+ doped ZBLAN and aluminosilicate glasses are measured, and the model decouples thermal and population lensing effects. The analysis yields the net power density, the cooling efficiency, and important photo-physical parameters. The respective values are in good agreement with previously reported parameters for ZBLAN glass. Aluminosilicate glass is found to be a promising optical refrigerator material. We show that the measurement of laser-induced lensing is a valuable tool that can advance the characterization and optimization of materials for cryogenic optical refrigerators.
Editor: American Institute of Physics
Idioma: Inglês

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