High-Q resonances governed by the quasi-bound states in the continuum in all-dielectric metasurfaces

Fang, CZ; Yang, QY; Yuan, QC; Gan, XT; Zhao, JL; Shao, Y; Liu, Y; Han, GQ; Hao, Y

Liu, Y (corresponding author), Xidian Univ, Sch Microelect, State Key Discipline Lab Wide Band Gap Semicond T, Shaanxi Joint Key Lab Graphene, Xian 710071, Peoples R China.; Gan, XT (corresponding author), Northwestern Polytech Univ, Sch Phys Sci & Technol, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710129, Peoples R China.; Gan, XT (corresponding author), Northwestern Polytech Univ, Sch Phys Sci & Technol, Shaanxi Key Lab Opt Informat Technol, Xian 710129, Peoples R China.

OPTO-ELECTRONIC ADVANCES, 2021; 4 (6):

Abstract

The realization of high-Q resonances in a silicon metasurface with various broken-symmetry blocks is reported. Theoretical analysis reveals that the s......

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