Creation of tunable bandgaps in a three-dimensional anisotropic photonic crystal modulated by a nematic liquid crystal

doi:10.1016/j.physb.2006.05.009

淡江大學機構典藏 > 工學院 > 機械與機電工程學系暨研究所 > 期刊論文 > Item 987654321/65455

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题名:	Creation of tunable bandgaps in a three-dimensional anisotropic photonic crystal modulated by a nematic liquid crystal
作者:	Liu, Chen-Yang;Peng, Yen-Tun;Wang, Jun-Zhi;Chen, Lien-Wen
贡献者:	淡江大學機械與機電工程學系
关键词:	Tunable bandgap;Anisotropic photonic crystal;Liquid crystal
日期:	2007-01
上传时间:	2013-07-09 15:30:52 (UTC+8)
出版者:	Amsterdam: Elsevier BV * North-Holland
摘要:	Photonic crystals (PCs) have many potential applications because of their ability to control light-wave propagation. We have investigated the tunable bandgap in a three-dimensional anisotropic photonic crystal structures modulated by a nematic liquid crystal. The PC structure composed of an anisotropic dielectric sphere in the liquid crystal medium is studied by solving Maxwell's equations using the plane wave expansion method. The photonic band structures are found to exhibit partial bandgaps for the simple-cubic lattices. Numerical simulations show that the bandgaps can be continuously tuned in simple-cubic lattices consisting of anisotropic dielectric spheres by infiltrating nematic liquid crystals. We analyzed the variations of bandgap by considering various modulation of electric field. Such a mechanism of bandgap adjustment should open up a new application for designing components in photonic integrated circuits.
關聯:	Physica B: Condensed Matter 388(1-2), pp.124-129
DOI:	10.1016/j.physb.2006.05.009
显示于类别:	[機械與機電工程學系暨研究所] 期刊論文

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