Near-infrared Kerr nonlinearity of Pb ( PO 3 ) 2 - WO 3 glasses

We report measurements of the nonlinear refractive index, n 2 , and the nonlinear absorption coefficient, α 2 , of Pb ( PO 3 ) 2 - WO 3 glasses. The measurements were performed using 100 fs (17 ps) laser pulses at 800 nm (1064 nm). Positive values of n 2 ∼ 10 − 19   m 2 / W and negligible α 2 were m...

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Bibliographic Details
Published in:Journal of applied physics 2010-11, Vol.108 (10), p.103523-103523-5
Main Authors: Oliveira, T. R., Fedus, K., Manzani, D., Falcão-Filho, E. L., Boudebs, G., de Araújo, Cid B., Messaddeq, Y.
Format: Article
Language:English
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Summary:We report measurements of the nonlinear refractive index, n 2 , and the nonlinear absorption coefficient, α 2 , of Pb ( PO 3 ) 2 - WO 3 glasses. The measurements were performed using 100 fs (17 ps) laser pulses at 800 nm (1064 nm). Positive values of n 2 ∼ 10 − 19   m 2 / W and negligible α 2 were measured. The results show that the nonlinearity is faster than 100 fs and it is observed an increase of n 2 with the increasing of the WO 3 amount in the samples. The Boling, Glass, and Owyoung model, based on the semiclassical harmonic oscillator model, was used to predict the values of n 2 , with basis on the values of the linear refractive index of the samples.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3514570