| Ge-Ga-Cd硫化物玻璃的超快三阶非线性光学性质与结构关系研究 |
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| 引用本文： | 王振伟,王学锋,刘春玲,赵修建,向红,余家国,龚旗煌,顾少轩.Ge-Ga-Cd硫化物玻璃的超快三阶非线性光学性质与结构关系研究[J].中国物理 B,2005,14(3):551-555. |
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| 作者姓名： | 王振伟 王学锋 刘春玲 赵修建 向红 余家国 龚旗煌 顾少轩 |
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| 作者单位： | Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China;Key Laboratory for Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, Wuhan 430070, China;Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China;Key Laboratory for Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, Wuhan 430070, China;Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China;Key Laboratory for Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, Wuhan 430070, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant Nos 10204003, 90101027, 90206003 and 50125205), the National Key Basic Research Special Foundation of China (Grant No TG1999075207) and by Chinese Academy of Sciences, and the Nippon Sheet Glass Science Foundation for Materials Science and Engineering. |
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| 摘 要： | 本文采用飞秒时间分辨光学克尔门技术测量了GeS2-Ga2S3-CdS硫化物玻璃体系的超快三阶非线性光学响应，所用激光波长分别为820nm和640nm。?实验结果证明了GeS2-Ga2S3-CdS组分玻璃具有很大的飞秒超快三阶非线性光学响应，另外，其Kerr信号随摩尔组分的不同呈显著变化。通过拉曼光谱结构分析，探讨了此系列硫化物玻璃的三阶非线性光学性质与结构的关系，结果表明构成玻璃网络的四面体结构单元GeS4](GaS4])对其超快三阶光学非线性起重要作用。实验还表明了此硫化物玻璃体系的超快三阶非线性不符合半经验的Miller定律。
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| 关 键 词： | 三阶非线性光学性质，超快光谱，硫化物玻璃 |
| 收稿时间： | 2004-05-31 |
Structure dependence of ultrafast third-order optical nonlinearity for Ge—Ga—Cd sulfide glasses |
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| Wang Zhen-Wei,Wang Xue-Feng,Liu Chun-Ling,Zhao Xiu-Jian,Xiang Hong,Yu Jia-Guo,Gong Qi-Huang and Gu Shao-Xuan.Structure dependence of ultrafast third-order optical nonlinearity for Ge—Ga—Cd sulfide glasses[J].Chinese Physics B,2005,14(3):551-555. |
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| Authors: | Wang Zhen-Wei Wang Xue-Feng Liu Chun-Ling Zhao Xiu-Jian Xiang Hong Yu Jia-Guo Gong Qi-Huang and Gu Shao-Xuan |
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| Institution: | Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China; Key Laboratory for Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, Wuhan 430070, China; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | Ultrafast third-order nonlinear optical responses of GeS2—Ga2S3—CdS glasses have been measured by using femtosecond time-resolved optical Kerr effect (OKE) technique at the wavelengths of 820nm and 640nm respectively. The experimental results show that GeS2—Ga2S3—CdS glasses have large femtosecond third-order optical nonlinear responses and their OKE signals vary considerably with the composition. The relationship of structure-property is discussed by means of Raman spectroscopy analysis, suggesting that the tetrahedron unit GeS4] or GaS4] plays an important role in the ultrafast third-order nonlinear optical response. In addition, the experimental results also reveal that the ultrafast third-order optical nonlinearity of these glasses does not obey the Miller rule. |
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| Keywords: | third-order optical nonlinearity ultrafast spectroscopy chalcogenide glasses |
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