Topology optimization of a superconducting photonic crystal power beam splitter

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Abstract
The design of photonic crystals using novel materials holds significant importance in constructing high-performance, next-generation photonic crystal devices. In this study, aiming at the requirements for enhanced transmission and selectivity, we utilized a topology optimization method based on the method of moving asymptotes (MMA) to realize a high-temperature superconducting photonic crystal power splitter with low transmission loss and selectivity effects, which allows for flexible control and manipulation of optical signals. The method addresses the shortcomings of traditional scanning techniques, such as low efficiency and high resource consumption, by allowing for multi-parameter optimization. This improvement enhances the precision and effectiveness of the numerical computational iterative process. The research offers insights into the design of novel optical devices.
Funding Information
  • National Key Research and Development Program of China (2021YFA0718801)
  • Fundamental Research Funds for the Central Universities (BUPT, 2024ZCJH14)
  • National Natural Science Foundation of China (62071448, 62101057, 62101062, 62101131, 62101002)

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