Electroabsorption spectrum of substituted polyphenylacetylenes  

作　　者：CHENG Xiaoman Department of Optoelectronic Information Engineering, Tianjin Institute of Technology, Tianjin 300191, China 

出　　处：《Chinese Science Bulletin》1998年第14期1215-1219,共5页

摘　　要：Electroabsorption (EA) measurements on thin films of poly[ o (trimethylsilyl) phenylacetylene] and poly[ o (trimethylsilylmethyl) phenylacetylene] have been performed. The spectral change induced by an exernal electric field (EA spectra) has been observed, which shows the similar shape of the second derivative of the optical absorption spectra. The change in the absorption Δ α is obtained from the EA spectrum, and Δ n is calculated through Kramers_Krong transformation. The optical properties of substituted polyphenylacetylenes (PPAs) were discussed.Electroabsorption (EA) measurements on thin films of poly [o-(trimethylsilyl) phenylacetylene] and poly [o-(trimethylsilylmethyl) phenylacetylene] have been performed. The spectral change induced by an exernal electric field (EA spectra) has been observed, which shows the similar shape of the second derivative of the optical absorption spectra. The change in the absorption Δα is obtained from the EA spectrum, and Δn is calculated through Kramers-Krong transformation. The optical properties of substituted polyphenylacetylenes (PPAs) were discussed.

关 键 词：SUBSTITUTED polyphenylacetylenes ELECTROABSORPTION SPECTRUM OPTICAL NONLINEARITIES 

分 类 号：O437[机械工程—光学工程]