naa a22 4500 510817998 CHVBK 20180411083517.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-013-9506-1 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9506-1 High-extinction-ratio and low-insertion-loss Plasmonic Filter with Coherent Coupled Nano-cavity Array in a MIM Waveguide [Elektronische Daten] [Ye Liu, Fei Zhou, Bo Yao, Jie Cao, Qinghe Mao] In this paper, a novel plasmonic filter with very high extinction ratio and low insertion loss is proposed based on the coherent coupled nano-cavity array in a metal-insulator-metal (MIM) waveguide. The coherent coupling interactions among nano-cavities are investigated with an analytical model which is derived based on the temporal coupled-mode theory and transfer-matrix method. The destructive interference of the surface plasmon polaritons coupled from the nano-cavities at the resonant wavelength is achieved by suitably designing the period of the cavity array, which may be used for increasing the extinction ratio of the filter based on the nano-cavity array in the MIM waveguide. A plasmonic filter with an extinction ratio higher than 60 dB and an insertion loss less than 1.0 dB is obtained by applying the destructive interference in the design of a six-rectangular-cavity array in an Ag-air-Ag waveguide. And the correctness of the design for the filter is verified by the results obtained with the finite-difference time-domain simulation technique. This work may provide useful schemes and approaches for realization of various wavelength-sensitive devices in plasmonic integrated circuits. Springer Science+Business Media New York, 2013 Plasmonic filter nationallicence Metal-insulator-metal waveguide nationallicence Coherent coupled nano-cavity array nationallicence Surface plasmon nationallicence Liu Ye Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut Zhou Fei Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut Yao Bo Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut Cao Jie Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut Mao Qinghe Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 1035-1041 1557-1955 8:2<1035 2013 8 11468 https://doi.org/10.1007/s11468-013-9506-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9506-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Ye Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut NATIONALLICENCE 700 1- Zhou Fei Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut NATIONALLICENCE 700 1- Yao Bo Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut NATIONALLICENCE 700 1- Cao Jie Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut NATIONALLICENCE 700 1- Mao Qinghe Anhui Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031, Hefei, Anhui, China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 1035-1041 1557-1955 8:2<1035 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer