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SEMI OpenIR  > 中国科学院半导体研究所(2009年前)  > 期刊论文

题名: Determination of the absorption for incident light propagating parallel through the guest-host polymer film waveguide
作者: Qin ZH;  Fang CS;  Pan QW;  Gu QT;  Wu XW;  Yu JZ
发表日期: 2003
摘要: Guest host polymer thin films of polymethyl methacrylate (PMMA) incorporated with (4'-nitrobenzene)-3-azo-9-ethylcarbazole (NAEC) were fabricated by spin coating and then poled by the method of corona-onset poling at elevated temperature. The absorption mechanism of the polymeric film, which is very important for the optical transmission losses and directly relates to the orientation of chromophore NAEC in polymer PMMA, was investigated in detail. From the UV-visible absorption spectra for NAEC/PMMA film before and after being poled, we determined the change of absorption coefficient kappa with the wavelength and approximately calculated the maximum absorption A(parallel tomax) as 3.46 for incident light propagating parallel through the film, i.e. the ordinary polarized light, which cannot be directly measured in the spectro photometer. (C) 2002 Elsevier Science Ltd. All rights reserved.
KOS主题词: Infrared spectra;  polymer;  Thin films;  Chromophores
刊名: OPTICS AND LASERS IN ENGINEERING
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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Qin ZH; Fang CS; Pan QW; Gu QT; Wu XW; Yu JZ .Determination of the absorption for incident light propagating parallel through the guest-host polymer film waveguide ,OPTICS AND LASERS IN ENGINEERING,2003,41 (1):139-145
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