Second-order nonlinear optical properties of Ge-Ga-Ag-S glass irradiated by electron beam

• Published in: Transactions of Nonferrous Metals Society of China Vol. 16; no. B01; pp. 170 - 173
• Main Author: 陶海征 董国平 肖海燕 林常规 赵修建
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2006; Key Laboratory of Silicate Materials Science and Engineering, Wuhan University of Technology, Ministry of Education, Wuhan 430070, China
• Subjects: chalcogenide glasses; Ge 30Ga 3Ag 4S 63; Ge-Ga-Ag-S玻璃; microscopic mechanism; second-harmonic generation; 二阶非线性光学性质; 电子束发射; 硫属化物玻璃; chalcogenide glasses; microscopic mechanism; second-harmonic generation; Ge 30Ga 3Ag 4S 63; Ge30Ga3Ag4S63
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(06)60168-4

Ge-Ga-Ag-S chalcogenide glasses with the composition Ge30Ga3Ag4S63 were obtained by the conventional melt-quenching method. According to the visible-infrared and infrared spectra, Ge30Ga3Ag4S63 chalcogenide glass possesses wide transmittance window from 510 nm in the visible region up to 11.5 μm in the infrared region. And the present glass has better glass-forming ability （the difference between glass transition temperature and the peak temperature of crystallization is larger than 100 ℃）. Utilizing maker-fringe technique, a prominent second-harmonic generation was observed in Ge30Ga3Ag4S63 chalcogenide glass after irradiated by an electron beam （Accelerating voltage： 25 kV; Irradiating current： 15 nA; Irradiating time： 10 min）. And the mechanism of second-harmonic generation in the Ge-Ga-Ag-S system glasses was discussed.