几种新的杂环取代丁二炔类衍生物的三阶非线性光学性能  

The Third order Nonlinear Optical Characters of Several Novel Diacetylenes Derivatives Substituted with Heterocyclic Ring

作　　者：王江洪[1,2,3] 沈玉全[1,2,3] 余从煊[1,2,3] 朱培旺[1,2,3] 司金海[1,2,3] 

机构地区：[1]中国科学院感光化学研究所 [2]北京理工大学化工与材料学院 [3]中国科学院物理所

出　　处：《高技术通讯》1998年第3期33-37,共5页Chinese High Technology Letters

基　　金：国家自然科学基金

摘　　要：用简并四波混顿法测试了一系列新合成的丁二炔（ＰＤＡ）类衍生物的三阶非线性极化率，其γ值在１０－３４ｅｓｕ～１０－３０ｅｓｕ之间。其中ｐｏｌｙ－ＰＤＭＡ［聚５－（２－硫甲基－４－甲基）－嘧啶基－戊二炔－１－醇－α－甲基丙烯酸甲酸］的χ（３）值为１２７．１５８×１０－１３ｅｓｕ（０．５３２μｍ），对应的γ值为１１８４５．１９８×１０－３４ｅｓｕ，已接近目前文献所见的最大值１０－２９ｅｓｕ数量级。从ｐｏｌｙ－ＰＤＭＡ的ＵＶ－ｖｉｓ吸收光谱（λｍａｘ，＝３０７ｎｍ）及透射率（０．５３２ｕｍ，Ｔ＝０．０６５）来看，虽所测得的为部分共振γ值，但也是不同寻常了。A series of novel polydiacetylenes dervatives are measured by DFWM method, the third order nonlinear optical susceptibilities of which are between 10 -34 esu～10 -30 esu. Among them, the χ (3) value of poly PDMA is 127.158×10 -13 esu(0.532μm) and the corresponding molecular hyperpolarisability γ is 11845.198×10 -34 esu, which are close to the highest γ value(10 -29 esu) reported so far. Thinking about UV vis absorption spectrum (γ max, =307nm) and transmissivity(0.532μm, T=0.065), the γ value of poly PDMA is also unusual though the value measured is partly in resonant region.

关 键 词：杂环 取代 聚丁二炔 三阶极化率 非线性光学 

分 类 号：O632.17[理学—高分子化学] O626[理学—化学]