https://scholars.lib.ntu.edu.tw/handle/123456789/498845
標題: | Angle-independent infrared filter assisted by localized surface plasmon polariton | 作者: | Wang, C.M. Chang, Y.C. Tsai, M.W. Ye, Y.H. Chen, C.Y. Jiang, Y.W. SI-CHEN LEE Tsai, D.P. |
關鍵字: | Filters; Plasmonics | 公開日期: | 2008 | 卷: | 20 | 期: | 13 | 起(迄)頁: | 1103-1105 | 來源出版物: | IEEE Photonics Technology Letters | 摘要: | A plasmonic infrared (IR) filter was experimentally and theoretically investigated. A localized surface plasmon polariton (LSPP) mode which was angle-independent in almost fully incident angle was observed. Through the use of the LSPP mode, an IR reflection-type notch filter with an ultrahigh immunity for the angular deviation was realized. An angle-independent reflection dip was designed at λ = 6.2 μm with a full-width at half-maximum of 0.5 μm. The experimental result shows that the position and the line shape of the resonant dip at λ = 6.2 μm remain the same for an increasing incident angle from 20° to 60°. The optical properties can be engineered by tuning thickness of the cavity layer. The proposed notch filter presents a large angular tolerance means that the superior angular stability makes it more feasible as it is put into practical applications. © 2008 IEEE. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/498845 https://www.scopus.com/inward/record.uri?eid=2-s2.0-65149103549&doi=10.1109%2fLPT.2008.924320&partnerID=40&md5=08dbb356094c62468ee3295e44d06685 |
ISSN: | 10411135 | DOI: | 10.1109/LPT.2008.924320 | SDG/關鍵字: | Angle-independent; Angular deviations; Cavity layers; Incident angles; Infrared filters; IR reflection; Line shape; Localized surface plasmon; Plasmonics; Notch filters; Optical properties; Phonons; Photons; Plasmons; Quantum theory; Surface plasmon resonance |
顯示於: | 電機工程學系 |
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