Laser-Induced Phase Transformation in Chalcogenide Glasses Investigated by Micro-Raman Spectrometer  

作　　者：林常规 LI Zhuobin GU Shaoxuan TAO Haizheng DAI Shixun NIE Qiuhua 

机构地区：[1]Laboratory of Infrared Materials and Devices, Advanced Technology Research Institute, Ningbo Univeristy [2]State Key Laboratory of Silicate Materials for Architecture (Wuhan University of Technology)

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2014年第1期9-12,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded in part by the the International Science&Technology Cooperation Program of China(No.2011DFA12040);State Key Laboratory of Silicate Materials for Architectures(Wuhan University of Technology)(No.SYSJJ2013-03);sponsored by K.C.Wong Magna Fund in Ningbo University

摘　　要：A 488 nm continuous wave （CW） laser was employed in Raman spectrometer to both induce and characterize phase transformation in chalcogenide glasses. Laser-induced Raman inactive changes, structural evolution, and crystallization were observed at laser-irradiated region in GeS2-Sb2S3 glasses. The composition dependence of laser-induced phase transformation was discussed in terms of thermal stability and microstructural modification. It is strongly suggested from these results that fabrication of passive and active chalcogenide glass waveguides, such as refractive index change and nonlinear optical crystal line, is controllable by selecting appropriate glass composition, and convenient by using common CW lasers.A 488 nm continuous wave （CW） laser was employed in Raman spectrometer to both induce and characterize phase transformation in chalcogenide glasses. Laser-induced Raman inactive changes, structural evolution, and crystallization were observed at laser-irradiated region in GeS2-Sb2S3 glasses. The composition dependence of laser-induced phase transformation was discussed in terms of thermal stability and microstructural modification. It is strongly suggested from these results that fabrication of passive and active chalcogenide glass waveguides, such as refractive index change and nonlinear optical crystal line, is controllable by selecting appropriate glass composition, and convenient by using common CW lasers.

关 键 词：chalcogenide glass phase transformation Raman scattering CRYSTALLIZATION opticalwaveguide 

分 类 号：TQ171.1[化学工程—玻璃工业]