Optical limiting behavior of bismuth oxide-based glass in the visible range

The authors report experimental results on the optical limiting behavior of a bismuth oxide-based glass by exciting the samples with nanosecond laser pulses at 532 and 598 nm . The results show that two-photon and free-carrier absorption processes contribute for the nonlinear absorption. Values for...

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Bibliographic Details
Published in:Applied physics letters 2006-11, Vol.89 (21), p.211912-211912-3
Main Authors: Oliveira, T. R., de S. Menezes, L., Falcão-Filho, E. L., Gomes, A. S. L., de Araújo, Cid B., Sakaguchi, K., Mezzapesa, F. P., Carvalho, I. C. S., Kazansky, P. G.
Format: Article
Language:English
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Summary:The authors report experimental results on the optical limiting behavior of a bismuth oxide-based glass by exciting the samples with nanosecond laser pulses at 532 and 598 nm . The results show that two-photon and free-carrier absorption processes contribute for the nonlinear absorption. Values for β , the two-photon absorption coefficient, and σ e , the absorption cross section due to free carriers, were determined. The values of β and σ e are dependent on the amount of bismuth oxide in the glass composition.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2393161