Reverse Design of Terahertz Waveguide Structures Based on Anderson Localization
IEEE TRANSACTIONS ON PLASMA SCIENCE(2024)
摘要
In this work, we present a reverse-design method for 1-D disordered waveguide structures which might be used for future terahertz on-chip integrated systems. This method is based on the Anderson localization effect to construct the initial structure of the waveguides. Due to the probability statistical distribution, the waveguides with randomly generated fluctuations have different localization abilities. We optimized the refractive index fluctuations and distributions of the waveguide structure through intelligent reverse-design algorithms and ultimately obtained the optimal structural parameters. Simulation results indicate that the optimized waveguide has a better localization ability, a lower insertion loss, and a good robustness against fabrication errors and defects compared to the initial waveguide.
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关键词
Optical waveguides,Location awareness,Electric fields,Refractive index,Fluctuations,Optical fibers,Biomedical optical imaging,Anderson localization,reverse-design,terahertz,waveguide
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