Enhanced chirality in a dielectric metasurface without breaking symmetry

We propose a dielectric metasurface constructed by quadrumer silicon nano-disks with crossed slots in the middle. This metasurface can support the excitation of bound states in the continuum which are closely related to the toroidal dipole resonance. After introducing chiral enantiomers with weak ch...

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Veröffentlicht in:	Physical chemistry chemical physics : PCCP 2023-01, Vol.25 (3), p.25-255
Hauptverfasser:	Liu, Xingguang, Li, Junqing, Zhao, Rui, Zhang, Yingjie, Dong, Yongkang
Format:	Artikel
Sprache:	eng
Schlagworte:	Broken symmetry Chirality Dipoles Disks Enantiomers Metasurfaces Phase control
Online-Zugang:	Volltext
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