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Schematic of SOI-structure 2D PC slab with L3 point-defect cavity.
(Color online) 2D Fourier transform of of the cavity mode in SOI-structure 2D PC slab; (a) air-cladding side and (b) -cladding side. The solid-line circles represent the light cone of each cladding and dashed-line circles represent the sum of the wave vector of TM-like slab mode at the cavity frequency and reciprocal lattice vector of the photonic crystal .
(a) SEM image of fabricated SOI structure. (b) The spectra of the radiation from the fabricated point-defect cavities. The solid line and dashed line indicate the result for the SOI structure and air-bridge structure, respectively.
Calculated factors and radiation power ratios of L3 point-defect cavities in SOI-structure and air-bridge-structure 2D PC slabs.
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