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Isotropic Absorption and Sensor of Vertical Split‐Ring Resonator
Author(s) -
Wu Pin Chieh,
Liao Chun Yen,
Chen JiaWern,
Tsai Din Ping
Publication year - 2017
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201600581
Subject(s) - isotropy , absorption (acoustics) , materials science , polarization (electrochemistry) , resonator , refractive index , optics , plasmon , optoelectronics , engineering physics , physics , composite material , chemistry
Four vertical split‐ring resonators with a significant plasmon confinement for an isotropic perfect absorption are demonstrated. The polarization‐insensitive absorption can be kept at a high value even when the angle of incidence is larger than 60°. A refractive index sensor with high sensing performance is also proposed because of its high absorption ability.
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