Calculated out-of-plane transmission loss for photonic-crystal slab waveguides |
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Authors: | Kuang Wan Kim Cheolwoo Stapleton Andrew Kim Woo Jun O'Brien John D |
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Affiliation: | Department of Electrical Engineering-Electrophysics, University of Southern California, Powell Hall of Engineering, 3737 Watt Way, Los Angeles, California 90089-0271, USA. wkuang@usc.edu |
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Abstract: | A fully three-dimensional finite-difference time domain numerical model is presented for calculating the out-of-plane radiation loss in photonic-crystal slab waveguides. The propagation loss of a single-line defect waveguide in triangular-lattice photonic crystals is calculated for suspended-membrane, oxidized-lower-cladding, and deeply etched structures. The results show that low-loss waveguides are achievable for sufficiently suspended membranes and oxidized-lower-cladding structures. |
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