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An efficient frequency domain finite element method is used to analyze in details thermal effects on the resonant frequency and quality factor of photonic crystal resonant cavities with square, hexagonal and circular-like lattices by considering the thermo-optic coefficients of their constituent materials.
In this work we have performed a numerical analysis of the influence of the geometry on the propagation characterisitics of subwavelength metallic gratings composed by gold or silver over a dielectric substrate. The reflection and transmission coefficientes for the TE and TM modes as a function of the incident angle were calculated.
The conditions to minimize or cancel the temperature effects on the coupling length of directional coupler have been analyzed considering the influence of the thermo-optic coefficient of their constituent materials on the coupler behavior.
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