期刊名称：Walailak Journal of Science and Technology (WJST)
印刷版ISSN：2228-835X
出版年度：2013
卷号：10
期号：2
页码：159-168
DOI：10.2004/wjst.v10i2.289
语种：English
出版社：Institute of Research and Development, Walailak University.
摘要：In the present work the refractive index spectra of Poly(2,2’-oxybis(methylene)bis(4-(hydroxyl(4-hydroxymethyl)naphthalene-1-yl)(phenyl)methyl)naphthalene-l-ol) (PHMNP) thin film have been studied at room temperature. The transmission and reflectance spectra, at normal incidence of PHMNP thin film were obtained in the range of (200 - 900 nm). The refractive index dispersion parameters such as oscillator energy E o , dispersion energy E d , long wavelength refractive index n ¥ , oscillator length strength S o were calculated to be about 4.18 eV, 11.95 eV, 1.96, 10.024×10 13 m -2 , respectively. The optical moments M -1 and M -3 , nonlinear optical susceptibility ( X 3 ) and nonlinear refractive index ( n 2 (0)) were found to be 2.85(eV) -2 , 0.1633(eV) -2 , 4.45×10 -13 esu and 8.64×10 -12 esu, respectively. The low reflectance and low refractive index of PHMNP thin film in the UV-Visible region make the material a prominent one for antireflection coating in solar thermal devices.
关键词：Refractive index dispersion, optical constants, nonlinear optical susceptibility
