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4 January 2008 Effect of scatterers shape between coupling channels on the photonic crystal coupler
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Abstract
In the present paper, the two-dimension photonic crystal (PC) polarization coupler is mainly studied. The PC waveguide coupler with a single row of dielectric rods in the interaction region is composed of square-arrayed dielectric pillars in air. The photonic band gap maps are calculated by using plane wave expansion (PWE) method and the effects of the geometrical parameters of the scatterers between two coupling channels on the property of the PC couplers are analyzed by using the finite-difference time-domain (FDTD) method. The simulation results show that the coupling property is sensitive to the shape variation of scatterers. The shape variation of scatterers between the two coupling channels will reduce coupling length greatly.
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Chunying Guan and Libo Yuan "Effect of scatterers shape between coupling channels on the photonic crystal coupler", Proc. SPIE 6831, Nanophotonics, Nanostructure, and Nanometrology II, 683110 (4 January 2008); https://doi.org/10.1117/12.753692
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