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  • Received: Apr. 25, 2008

    Accepted: --

    Posted: Jan. 1, 2009

    Published Online: Jun. 19, 2020

    The Author Email: Yun Li (nmg_liyun@yahoo.com.cn)

    DOI: 10.3788/aos20092901.0268

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    Li Yun, Wang Wenjun, Gao Xuexi, Liu Yunlong, Zhang Bingyuan, Li Hui. All-Optical Poling for Two Kinds of Host-Guest Adulterant Azo Compound Thin Films[J]. Acta Optica Sinica, 2009, 29(1): 6

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Acta Optica Sinica, Vol. 29, Issue 1, 6 (2009)

All-Optical Poling for Two Kinds of Host-Guest Adulterant Azo Compound Thin Films

Yun Li*, Wenjun Wang, Xuexi Gao, Yunlong Liu, Bingyuan Zhang, and Hui Li

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  • [in Chinese]

Abstract

Two kinds of azo compound host-guest adulterant thin films were prepared, then all-optical poling was made and their second-order nonlinear optical characteristics were studied by UV-visual spectra and second-harmonic generation. The experimental results show that the second-order nonlinear optical coefficient d33of 4′-Nitro-4-dimethylaminoazobenzene was determined to be 6.89×10-1 pm/V, and that of 4′-Iodo-4-dimethylaminoazobenzene is 7.77×10-2 pm/V. In addition, the two kinds of thin films show different second-harmonic generation (SHG) dependence on the thickness and relaxation after saturation. In therory, these phenomena could be explained by that the different substituen result in different molecular dipole property and interaction between azo molecule and host materials.

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