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.
出处
《高技术通讯》
EI
CAS
CSCD
1998年第3期33-37,共5页
Chinese High Technology Letters
基金
国家自然科学基金
关键词
杂环
取代
聚丁二炔
三阶极化率
非线性光学
Polydiacetylenes substituted with heterocyclic ring, Third order nonlinear Susceptibility χ (3) ,γ, DFWM