一种激光倍频新材料──间羟基苯甲酸的初步研究  

Primary Study on a New Kind of Second-Order Nonlinear Optical Material──m-Hydroxybenzoic Acid

作　　者：赵波[1] 卢文庆[1] 吴芸[2] 

机构地区：[1]南京师范大学化学系,南京210097 [2]中国药科大学基础部,南京210038

出　　处：《高等学校化学学报》2000年第4期620-622,共3页Chemical Journal of Chinese Universities

基　　金：南京师范大学青年基金

摘　　要：A new kind of second order nonlinear optical(NLO) material m hydroxybenzoic acid(HBA) was reported in this paper. Primary study results revealed that it had a relatively strong nonlinearity, its powder SHG effect was 12 times that of KDP. The solid cut off wavelength λ cut off (350 nm) is very short compared to other organic second order NLO materials. The experimental results also showed that HBA had a high laser damage threshold and good characteristic thermal stability. Furthermore, We calculated its second order nonlinear hyperpolarizability β and analyzed the microscopic nonlinear properties, and found that the hydroxyl group could improve β obviously while the hydroxyl multisubstitution could hardly contribute to β values. [WT5HZ]A new kind of second order nonlinear optical(NLO) material m hydroxybenzoic acid(HBA) was reported in this paper. Primary study results revealed that it had a relatively strong nonlinearity, its powder SHG effect was 12 times that of KDP. The solid cut off wavelength λ cut off (350 nm) is very short compared to other organic second order NLO materials. The experimental results also showed that HBA had a high laser damage threshold and good characteristic thermal stability. Furthermore, We calculated its second order nonlinear hyperpolarizability β and analyzed the microscopic nonlinear properties, and found that the hydroxyl group could improve β obviously while the hydroxyl multisubstitution could hardly contribute to β values. [WT5HZ]

关 键 词：间羟基苯甲酸 光学性质 截止吸收波长 

分 类 号：O625.511[理学—有机化学] O621.22[理学—化学]