Study of Linear and Nonlinear Optical Properties of Four Derivatives of Substituted Aryl Hydrazones of 1,8-Naphthalimide  

作　　者：Peiyang Gu Xufeng Xu Feng Zhou Tingting Zhao Gaojie Ye Gaoyan Liu Qinghua Xu Jianfeng Ge Qingfeng Xu Jianmei Lu 

机构地区：[1]Department of Polymer Science,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou,Jiangsu 215123,China [2]Department of Chemistry,National University of Singapore,3 Science Drive 3,117543,Singapore

出　　处：《Chinese Journal of Chemistry》2014年第3期205-211,共7页中国化学（英文版）

基　　金：The authors thank the National Natural Science Foundation of China(Nos.21071105,20902065 and 21176164).

摘　　要：Four 1,8-naphthalimide hydrazone molecules with different electron-donating groups have been applied in the study of linear and nonlinear optical(NLO)properties.These compounds showed strong green emission in solution.Their NLO properties such as two-photon absorption(TPA)behavior with femtosecond laser pulses ca.800 nm and excited-state absorption(ESA)behavior with nanosecond laser pulses at 532 nm were investigated.Compound 4 presented the largest two-photon cross section(550 GM)among them due to two factors:the conjugated length of compound 4 is the longest and the electron-donating ability of compound 4 is the strongest.Different from TPA behavior,compound 2 showed the best nonlinear absorption properties at 532 nm and its nonlinear absorption coef-ficient and third-order nonlinear optical susceptibilitiesχ^(3)were up to 1.41×10^(−10) MKS and 4.65×10^(−12) esu,re-spectively.Through the modification of the structure,the nonlinear optical properties of these compounds at differ-ent wavelengths(532 and 800 nm)were well tuned.The great broad-band nonlinear optical properties indicate hy-drazones are good candidates for organic nonlinear optical absorption materials.

关 键 词：excited-state absorption(ESA) fluorescence NAPHTHALIMIDE nonlinear optical(NLO) two-photon absorption(TPA) 

分 类 号：O62[理学—有机化学]