多重格子金属開口アレイのテラヘルツ領域での共鳴透過の結合モード法による解析

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2017/11/01

タイトル(英語): Theoretical Analysis of Extraordinary Optical Transmission through Multi-lattices Metal Hole Arrays in the Terahertz Region by Coupled-Mode Method

著者名: 神馬　洋司（日本大学工学部），宮嵜　博司（東北大学大学院工学研究科 応用物理学専攻）

著者名(英語): Yoji Jimba (College of Engineering, Nihon University), Hiroshi Miyazaki (Department of Applied Physics, Tohoku University)

キーワード: 金属開口アレイ，テラヘルツ領域，結合モード法，異常透過　　metal hole arrays，terahertz region，coupled-mode method，extraordinary optical transmission

要約(英語): Extraordinary optical transmission through multi-lattice metal hole arrays (MLMHA) in the terahertz region is investigated numerically by using coupled-mode analysis. MLMHA consist of two kinds of metal hole arrays (MHA) layer whose lattice constants are incommensurate with each other. By comparing the transmittance spectra of single lattice constant MHA and that of MLMHA, we observe the splitting and new peaks in the transmittance spectra for MLMHA. To study the origin of the new peaks, the transmittance spectra for MLHAL is compared with that of a system in which we filled the holes of MHA sandwiched between other MHA's. We found that in the transmittance spectra for the filled holes MHA, only peaks associated with MHA sandwiched between other MHA's vanish and the new peaks remained. Therefore, it is confirmed that the appearance of the new peaks is not due to the interaction between the surface modes of different lattice constant MHA's. To clarify the mode pattern for split peaks we investigate the distributions of electric field outside MHA by rotating the MLMHA. The result reveals that the split peaks come out from the same peak mode. Consequently, it is found that the interaction does not occur between surface modes of different lattice constant MHAs.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.137 No.11 （2017） 特集：メタマテリアル・プラズモニクス

本誌掲載ページ: 350-356 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/137/11/137_350/_article/-char/ja/