منابع مشابه
Strain-Dependent Birefringence Of Elastic Polymers
The optical parameters (refractive index, absorption coefficient) of opaque dielectric materials can be measured with terahertz (THz) Time-Domain spectroscopy (TDS). By using a THz beam of known polarization and measuring both components of the transmitted THz field, it is possible to determine the birefringence present in an anisotropic material. In this work we used polarization sensitive (PS...
متن کاملimproved laser induced birefringence in highly doped optical polymers
application of polymers in novel and advanced scientific technologies is increasingly expanding. in this regard, optical polymers among different materials have found a special and unique position. a novel dye doped polymer thin film was prepared by taking advantage of dye molecules' interaction with the host environment. this sample, like self-assembled structures, makes use of this inter...
متن کاملBirefringence Properties and Surface Relief Grating Formation on Methylacrylate Polymers with Photochromic Side Chains
We have studied light-induced birefringence (LIB) and surface relief grating (SRG) formation in the series of methylacrylate polymers. The effect of material structure such as length of photochromic side chain, glass transition temperature and molecular structure of azo units on LIB and SRG are studied. The optical formation of self-induced SRG on films of these materials is also presented.
متن کاملProbing Stress-Induced Optical Birefringence of Glassy Polymers by Whispering Gallery Modes Light Localization
An optical resonance method for the determination of the strain- and stress-optical coefficients of optically transparent polymers is presented and exemplified for monodisperse and bidisperse molecular weight polystyrene (PS). This method employs whispering gallery modes (WGMs) resonation inside a spheroid polymeric cavity, suspended on an optical fiber taper waist, which, in turn, is used for ...
متن کاملBirefringence Properties and Surface Relief Grating Formation on Methylacrylate Polymers with Photochromic Side Chains
We have studied light-induced birefringence (LIB) and surface relief grating (SRG) formation in the series of methylacrylate polymers. The effect of material structure such as length of photochromic side chain, glass transition temperature and molecular structure of azo units on LIB and SRG are studied. The optical formation of self-induced SRG on films of these materials is also presented.
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ژورنال
عنوان ژورنال: Kobunshi
سال: 1999
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.48.280