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Design and simulation of all optical NOT and XOR gates based on 2D photonic crystal with quasi-square ring cavity are reported in this paper. The designed 13µm×8µm photonic crystal has a square lattice of GaAs rods in air with refractive index of 3.40 at operating wavelength of 1.55 µm. The lattice constant, a = 0.540 µm and radius of rods, r = 0.185a µm are chosen so that a large band gap for a TE...
A Wavelength Division De-multiplexer has been proposed based on a hexagonal lattice 2D photonic crystal structure. The structure has been designed using GaAs rods, dielectric constant 11.4, which are suspended in air. The device has been proposed for De-multiplexing two wavelengths of 1.31 µm and 1.55 µm. The Plane Wave Expansion method and the Finite Difference Time Domain method have been utilized...
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