Creation of tunable absolute bandgaps in a two-dimensional anisotropic photonic crystal modulated by a nematic liquid crystal
學年 96
學期 2
出版（發表）日期 2008-07-01
作品名稱 Creation of tunable absolute bandgaps in a two-dimensional anisotropic photonic crystal modulated by a nematic liquid crystal
作品名稱（其他語言）
著者 Liu, Chen-Yang
單位 淡江大學機械與機電工程學系
出版者 Amsterdam: Elsevier BV * North-Holland
著錄名稱、卷期、頁數 Physics Letters. Section A: General, Atomic and Solid State Physics 372(31), pp.5198-5202
摘要 Photonic crystals (PCs) have many potential applications because of their ability to control light-wave propagation. We have investigated the tunable absolute bandgap in a two-dimensional anisotropic photonic crystal structures modulated by a nematic liquid crystal. The PC structure composed of an anisotropic-dielectric cylinder 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 absolute bandgaps for the square and triangular lattices. Numerical simulations show that the absolute bandgaps can be continuously tuned in the square and triangular lattices consisting of anisotropic-dielectric cylinders by infiltrating nematic liquid crystals. Such a mechanism of bandgap adjustment should open up a new application for designing components in photonic integrated circuits.
關鍵字 Tunable absolute bandgap;Anisotropic photonic crystal;Liquid crystal
語言 en
ISSN 0375-9601
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Liu, Cheng-Yang
審稿制度
國別 NLD
公開徵稿
出版型式 紙本
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