Investigation of the electro-optical activity and electro-optic effect of La3Ga5SiO14 crystal

Zhaojun Liu; Qingpu Wang; Xingyu Zhang; Jun Chang

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Investigation of the electro-optical activity and electro-optic effect of La3Ga5SiO14 crystal

Zhaojun Liu 1 #,Qingpu Wang 1 * #,Xingyu Zhang 2,Jun Chang 2

1.School of Information Science and Engineering, Shandong University

2.School of Information Science and Engineering- Shandong University

*Correspondence author

#Submitted by

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Funding: 教育部博士点基金（No.20020422048）

Opened online:30 November 2005

Accepted by: none

Citation: Zhaojun Liu,Qingpu Wang,Xingyu Zhang .Investigation of the electro-optical activity and electro-optic effect of La3Ga5SiO14 crystal[OL]. [30 November 2005] http://en.paper.edu.cn/en_releasepaper/content/3933

We study the electro-optical activity (EOA) of La3Ga5SiO14 (langasite, LGS), which is optically active along its optic axis. The theoretical analysis shows that EOA won’t change the rotatory power along the optic axis of LGS. An experiment scheme called “elliptic analyzer” is used. The relation curves of optical activity vs. applied electric field and field-induced birefringence vs. applied electric field are obtained. The first curve verifies the theoretical statement and from the second one we can obtain the electro-optical coefficient r11 to be 2.2 pm/V.

Keywords:optical activity, electro-optic effects, electro-optical activity, Q-switching, langasite

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