supported by the National Major Research and Development Program(Grant No.2018YFB2200200);the National Science Fund for Distinguished Young Scholars(Grant No.61725503);the National Natural Science Foundation of China(Grant Nos.62175216,61961146003,91950205);Zhejiang Provincial Natural Science Foundation(Grant No.LR22F050001);The Fundamental Research Funds for the Central Universities;The Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang(Grant No.2021R01001).
Compact passive silicon photonic devices with high performance are always desired for future largescale photonic integration.Inverse design provides a promising approach to realize new-generation photonic devices,whil...