Brillouin Zone Folding Metasurface for Near Perfect Circular Dichroism
Xiao‐Fei Yan,
Yong‐Jun Xie,
Sai Chen
et al.
Abstract:Planar chiral metasurfaces have demonstrated their proficiency in manipulating chiral light‐matter interactions for diverse applications. Nevertheless, it proves arduous to simultaneously attain elevated quality factors and potent chirality response. In this work, a planar chiral metasurface is proposed, that supports Brillouin zone folding‐induced bound states in the continuum (BZF‐BICs) featuring a high‐Q factor resonance and near‐perfect circular dichroism response. By introducing periodic perturbation and … Show more
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