教師資料查詢 | 類別: 期刊論文 | 教師: 劉承揚 Cheng-yang Liu (瀏覽個人網頁)

標題:Efficient omnidirectional couplers achieved by anisotropic photonic crystal waveguides
學年98
學期1
出版(發表)日期2009/08/01
作品名稱Efficient omnidirectional couplers achieved by anisotropic photonic crystal waveguides
作品名稱(其他語言)
著者Liu, Cheng-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 373(34), pp.3061-3066
摘要Photonic crystals (PCs) have many potential applications because of their ability to control light-wave propagation. We have investigated omnidirectional couplers in two-dimensional anisotropic PC structures. The anisotropic PC coupler composed of an anisotropic-dielectric cylinder in air is studied by solving Maxwell's equations using the plane wave expansion method and finite-difference time-domain method. The photonic band structures are found to exhibit absolute bandgaps for the square lattices. Numerical simulations show that the incident light-waves at both transverse electric and transverse magnetic modes have efficient coupling in anisotropic PC coupler with square lattices. The guided modes and coupling length are analyzed by considering various line defect anisotropic PC waveguides and interaction regions of couplers. Such a mechanism of omnidirectional coupling should open up a new application for designing components in photonic integrated circuits.
關鍵字Coupler;Anisotropic photonic crystal;Coupling length
語言英文
ISSN0375-9601
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
國別荷蘭
公開徵稿
出版型式紙本
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