期刊
OPTIK
卷 124, 期 24, 页码 6669-6675出版社
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijleo.2013.05.106
关键词
Nanocomposite materials; Third order susceptibility; Nanoparticle
类别
In this work, we are going to introduce a new composite nanostructure (metal-dielectric) based on GaN to manage optical and electrical properties. For doing and evaluation of these properties, first, we evaluated and calculated the wave functions and energy levels of the introduced structure by solving the Schrodinger equation analytically. Then using wave function nonlinear optical properties such as third order susceptibility are studied. We observed that with control of nanoparticle parameters different behavior is obtained. For example with increase of the well width, third order susceptibility is decreased too but with more increasing the well width we observed increasing the nonlinear susceptibility. This effect depends on different displacement of ground and first excited stated energy levels and consequently wave functions due to changing of defect radius. Also, we show that the third order susceptibility in this case is very larger than bulk cases. Finally it should mention that the reported results are for wavelengths larger than 30 mu m. (C) 2013 Published by Elsevier GmbH.
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