摘要
使用二环己基碳酰亚胺(DCC)和N,N 二甲基吡啶(DMAP)催化合成了非线性生色化合物2 炔丙基 4 [4 N,N 二乙基苯偶氮基]苯甲酸酯(PBAB)。与酸催化等法进行比较,DCC/DMAP催化法具有反应条件温和、产率高的优点。用紫外、红外、核磁和元素分析对化合物结构进行表征。测定了其光限幅性能,在低入射激光光强时,透射光强度随入射光强度增加而增加;当入射光强度达151.4GW/cm2透射光强开始偏离线性,呈现非线性光限幅效应。对其限幅机制进行了分析,结果显示产物对1064nm波长激光的限幅机制主要是双光子吸收机制。
The nonlinear optical chromophoric compound, 2-propynyl-{4-[4-N,N-diethyl-benzeneazo]} benzoate (PBAB), was synthesized using 1,3-dicyclohexylcarbodiimide and p-dimethyaminopyridine as catalysts. This method has special advantages such as high yield and mild reaction temperature. The structure of N PBAB was characterized by IR, UV-spectra, 1HNMR and element analysis. The optical limiting property from PBAB in THF solution was studied. In the low fluence region, the PBAB solution with a concentration of 4 mg/cm2 exhibits a high linear transmittance (68%) and the transmitted fluence linearly increases with the increase of incident fluence. The transmitted fluence starts to deteriorate from linearity at the incident fluence of 151.4 GW/cm2, showing nonlinear optical limiting effect. The optical limiting in PBAB solution to the laser with 1064 nm wavelength and 40 ps pulse width mainly originates from the two-photon absorption.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2004年第3期354-356,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50073001
90206014)
国家教育部青年骨干教师基金资助项目(教技司2000(56))
安徽省科技厅重点资助项目(02022021)
安徽省教委自然科学基金资助项目(2003kj016)
关键词
非线性光学
乙炔
光限幅
双光子
偶氮苯
Acetylene
Benzene
Catalysts
Laser applications
Nonlinear optics
Synthesis (chemical)
