CsCl Effected Ultrafast Third-order Optical Nonlinear it ies of GeS_2-Sb_2S

材料科学技术（英文）, 2009, 25(6): 772-776.

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

2.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

3.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

4.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

5.Universite de Rennes I, Rennes 35042, France

6.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

基金项目: the Natural Science Foundation of Ningbo, China (Nos. 2006A610056, 2007A610004). This work was also sponsored by K.C.Wong Magna Fund in Ningbo University, China the Science and Technology Department of Zhejiang Province, China(2006C11127) the National Ba-sic Research Program of China ("973 Project",(2006CB708607) the Sci-ence and Technology Foundation of Ningbo, China(2006B100068)

CsCl Effected Ultrafast Third-order Optical Nonlinear it ies of GeS_2-Sb_2S_3 Chalcogenide Glasses

Hua Zhang ^1, , Qiuhua Nie ^2, , Shixun Dai ^3, , Xiang Shen ^4, , Xunsi Wang ^5, , Xianghua Zhang ^6,

1.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

2.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

3.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

4.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

5.Universite de Rennes I, Rennes 35042, France

6.Faculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo 315211, China

Keywords： Optical band gap

A series of alkali halide doped chalcohalide glasses (100-χ)(0.9GeS_2-0.1Sb_2S_3)-:rCsCI (χ=5, 10, 15 and 20 mole fraction) were prepared. The absorption spectra and Raman scatting spectra of these glasses were measured. The optical band gaps E_(opt) were obtained from ultraviolet absorption edges. Z-scan technique was utilized to investigate the third-order nonlinear optical properties of GeS_2-Sb_2S_3-CsCI glasses. The value of E_(opt) increases and the third-order optical nonlinearity decreases with increasing CsCl content. Decreasing lone-pair electron and broadening the band-gap will provide less transition paths for nonlinear process, which play a key role in ultrafast third-order nonlinear optical responses of these chalcohalide glasses.

参考文献

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材料期刊网

CsCl Effected Ultrafast Third-order Optical Nonlinear it ies of GeS_2-Sb_2S_3 Chalcogenide Glasses

参考文献