聚合物DR/PMMA薄膜的红外非线性光学特性  

INFRARED NONLINEAR OPTICAL PROPERTIES OF POLYMER DR/PMMA THIN FILM

作　　者：王威礼[1] 王德煌[1] 叶成[2] 董海鸥[2] 

机构地区：[1]北京大学物理系,北京100871 [2]中国科学院化学研究所,北京100080

出　　处：《红外与毫米波学报》1993年第5期404-408,共5页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金~~

摘　　要：报道了聚合物DR/PMMA薄膜材料的红外光学特性及由薄膜材料形成法—珀腔结构的透射率随外加电压的变化规律,测定了折射率的色散n(λ)、三阶极化率χ^((3))(-ω;ω,0,0)和二次电光系数(kerr系数)R,在室温下测得波长为792.4 nm时χ^((3))=(2.0-i0.32)×10^(-11)esu,R=-(4.9-i7.9)×10^(-20)m^2/V^2。The infrared nonlinear optical properties of polymer DR/PMMA thin film which is formed into a structure of Fabry-Perot cavity are reported in this paper. The dispersion of refractive index n(λ), the third order nonlinear susceptibility X^((3))(-ω; ω, 0, 0) and quadratic electro-optic coefficient R are determined by the law of transmission vs. externally applied electric voltage. At room temperature and at the wavelength of 792.4 nm, X^((3)) (2.0-i0.32)×10^(-11) esu and R=-(4.9-i7.9)×10^(-20)m^2/V^2 are obtained, respectively.

关 键 词：薄膜 非线性光学 高聚物 F-P腔 

分 类 号：TN204[电子电信—物理电子学]