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Proceedings Paper

Z-scan determination of third-order nonlinear optical properties of Poly(4,4'-diazobenzene-2,5-thiophene)
Author(s): Huawei Shao; Mei Xiang; Zhenhong Jia; Xiaoyi Lü
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Paper Abstract

A novel material,Poly(4,4'-diazobenzene-2,5-thiophene) (PDABTh) was synthesized and its third-order optical nonlinearity was studied using Z-scan technique with 20 ps laser pulse at 1064 nm. We measured the nonlinear refractive index n2=8.4x10-19 m2/w with positive sign and nonlinear absorption coefficient β=1.8x10-12 m/w with reverse saturable absorption. The molecular second-order hyperpolarizability was calculated to be 4.2x10-30 esu. The special Π-electron structure may contribute to these relatively large non-linear optical properties. This suggests that the PDABTh may have a potential application in nonlinear optical devices.

Paper Details

Date Published: 2 February 2009
PDF: 8 pages
Proc. SPIE 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, 716030 (2 February 2009); doi: 10.1117/12.810995
Show Author Affiliations
Huawei Shao, Xinjiang Univ. (China)
Mei Xiang, Xinjiang Univ. (China)
Zhenhong Jia, Xinjiang Univ. (China)
Xiaoyi Lü, Xi'an Jiaotong Univ. (United States)


Published in SPIE Proceedings Vol. 7160:
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications
Shenghua Ye; Guangjun Zhang; Jun Ni, Editor(s)

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