Shichen Yin, Zhiyu Wang, Y. Ho, Y. Takakura, J. Delaunay
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Abstract
We propose a hybrid cavity-channel structure to tune optical wavelengths using narrow-band resonances. High spectral selectivity and high angular dependency of the absorptance are reported due to the resonance between propagating surface plasmon modes and channel modes. By varying the incident angle, we could adjust both the position and the amplitude of the reflectance dips thus achieving highly efficient angular optical switches.
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