Engineering of multiple bound states in the continuum by latent representation of freeform structures
KAUST DepartmentAdvanced Semiconductor Laboratory
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Embargo End Date2022-03-22
Permanent link to this recordhttp://hdl.handle.net/10754/668714
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AbstractWe demonstrate a neural network capable of designing on-demand multiple symmetry-protected bound states in the continuum (BICs) in freeform structures with predefined symmetry. The latent representation of the freeform structures allows the tuning of the geometry in a differentiable, continuous way. We show the rich band inversion and accidental degeneracy in these freeform structures by interacting with the latent representation directly. Moreover, a high design accuracy is demonstrated for arbitrary control of multiple BIC frequencies by using a photonic property readout network to interpret the latent representation.
CitationLin, R., Alnakhli, Z., & Li, X. (2021). Engineering of multiple bound states in the continuum by latent representation of freeform structures. Photonics Research, 9(4), B96. doi:10.1364/prj.415655
SponsorsKing Abdullah University of Science and Technology Baseline Fund (BAS/1/1664-01-01); Competitive Research Grants (URF/1/3437-01-01, URF/1/3771-01-01).
The authors would like to thank Prof. Andrea Fratalocchi from KAUST for his advice.
PublisherThe Optical Society