Third-order nonlinear spectra and optical limiting of lead oxifluoroborate glasses

被引：47

作者：

Almeida, J. M. P. ^{[1
]}

De Boni, L. ^{[1
]}

Hernandes, A. C. ^{[1
]}

Mendonca, C. R. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 18期

基金：

巴西圣保罗研究基金会;

关键词：

2-PHOTON ABSORPTION; REFRACTIVE-INDEX;

D O I：

10.1364/OE.19.017220

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have determined two-photon absorption and nonlinear refraction spectra of the 50BO(1.5) - (50-x)PbF2 - xPbO glasses (with x = 25, 35, 50 cationic %) at the range of the 470 and 1550 nm. The replacement of fluor atoms by oxygen leads to an increase in the third-order susceptibility, due to the formation of non-bridging oxygens (NBO). The nonlinear index of refraction is one order of magnitude higher than the one for fused silica, and it increases almost twice for the sample with x = 50. This sample has also shown promising features for all-optical switching as well as for optical limiting. (C) 2011 Optical Society of America

引用

页码：17220 / 17225

页数：6

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