Nonlinear optical waveguides in As2S3-Ag2S chalcogenide glass thin films

被引：21

作者：

Almeida, J. M. P. ^{[1
,2
]}

Barbano, E. C. ^{[1
]}

Arnold, C. B. ^{[2
]}

Misoguti, L. ^{[1
]}

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

机构：

[1] Univ Sao Paulo, Sao Carlos Inst Phys, POB 369, BR-13560970 Sao Carlos, SP, Brazil

[2] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA

来源：

OPTICAL MATERIALS EXPRESS | 2017年 / 7卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

AG2S QUANTUM-DOT; FEMTOSECOND; PHOTONICS;

D O I：

10.1364/OME.7.000093

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chalcogenide glasses (ChGs) are promising materials for nonlinear optical applications due to their elevated third-order optical susceptibility. Nonetheless, oxidation and photorefractive effects make the characterization and processing of this class of materials an intricate process. Employing ultrashort laser pulses, we were able to investigate the optical nonlinearities of As2S3 thin films doped with Ag2S nanocrystals, as well as produce channel waveguides. The results showed that the nonlinear refractive indexes of these films are in the order of 2.3-5.2 x 10(-18) m(2)/W at wavelengths in the range of 775-1600 nm. Such film revealed to be proper for the development of nonlinear optical devices, since we have demonstrated the functionality of an 8.7 mm long waveguide for spectral broadening femtosecond IR pulses. (C) 2016 Optical Society of America

引用

页码：93 / 99

页数：7

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