Enhanced transmission and directional emission via coupled-resonator optical waveguides
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- Zhu, ZH., Ye, WM., Ji, JR. et al. Appl. Phys. B (2007) 86: 327. doi:10.1007/s00340-006-2457-x
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We propose a novel photonic crystal waveguide configuration consisting of coupled-resonator optical waveguides at the termination to obtain enhanced transmission and beaming of light. We show theoretically that such a configuration can collimate the light output from a photonic crystal waveguide over a wide bandwidth range. The mechanism explained in this paper may be easily extrapolated to the photonic crystal configuration of air holes in a dielectric substrate.