摘要
用 Z-扫描的方法研究了新合成的一种二芳基乙烯化合物( C_(27)H_(18)F_6S_2)的光学非线性性质.测量的二芳基乙烯化合物在533 nm 和633 nm 处的非线性折射系数分别为 n_2=-7.69×10^(-6)cm^2/W 和 n_2=-3.26×10^(-6)cm^2/W,非线性吸收系数分别为,β=-6.96×10^(-4)m/W 和β=-1.06×10^(-3)m/W.研究了在大光强下折射率的横向空间分布的变化.该样品对533 nm 的连续光能够起到优良的光限制器的作用,其光限幅的动态范围可达287.
Z-scan technique is used to study the non-linear optical properties of a new kind of diarylethene compound C27H18F6S2. The measured non-linear refractive indexes at 533 nm and 633 nm are n2=-7.69×10^-6cm^2/w and n2=3.26×10^-6cm^2/w, non-linear absorption are β=-6.96×10^-4 m/w and β=1.06×10^-3 m/w. and the transverse spatial distribution of the change in the refractive index under the larger incident intensity was studied. And the sample can be worked as an optical limiting device for 533 nm CW laser, and its dynamic range is 287.
出处
《南开大学学报(自然科学版)》
CAS
CSCD
北大核心
2007年第5期63-67,84,共6页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
国家自然科学基金(60578020
20564001)
江西省自然科学基金(050017)
长江学者和创新团队发展计划资助
关键词
二芳基乙烯
非线性折射率
非线性吸收
光限幅
diarylethene
non-linear refractive index
non-linear absorption
optical limiting