Wavelength-Selective Optical Filters Based on Metal-Patch Cavities With Slot Waveguide Interfaces

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We theoretically propose and investigate the resonant wavelength-selective optical filters based on the subwavelength metallo-dielectric nanopatch cavities and the metal slot waveguides. Using the temporal coupled-mode theory and three-dimensional finite-difference time-domain simulations, we analyze the optical coupling efficiencies and filtering characteristics, which are optimized by adjusting the waveguide-cavity distance to modify the decay rates from the cavity. The proposed optical filters can be extended to multiport channel-dropping filters while maintaining subwavelength-scale dimensions including the coupling regions.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2014-08
Language
English
Article Type
Article
Keywords

PLASMONIC NANOCIRCUITS; RESONATORS; LASERS; MODES

Citation

IEEE PHOTONICS JOURNAL, v.6, no.4

ISSN
1943-0655
DOI
10.1109/JPHOT.2014.2331253
URI
http://hdl.handle.net/10203/194538
Appears in Collection
EE-Journal Papers(저널논문)
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