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A novel method is presented to enhance the resonant transmission contrast ratio in metal-insulator-metal(MIM)sidecoupled-cavity waveguide.The finite difference time domain(FDTD)method is used to simulate and study the optical properties of the filter based on double side-coupled cavities structure with optofluidics pump system(OPS).This system provides a flexible way to change wavelength in the optical filter.In the numerical simulation,the resonant wavelengths from 1000 nm to 1550 nm are analyzed.We find that the double side-coupled cavities structure with OPS has higher onresonance transmittance and better wavelength selectivity than the single side-coupled cavity structure with OPS. 相似文献
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