Metasurfaces – planar arrays of subwavelength nanostructures – enable unprecedented control of electromagnetic fields. A particularly intriguing phenomenon in this context is the formation of bound ...
Exploring topological singularities in non-Hermitian photonic systems has recently become a frontier in modern physics and engineering. Towards this goal, researchers in China have experimentally ...
Figure 1 Schematic diagram of a nonlinear metasurface composed of asymmetric meta-atoms based on guided mode resonance and bound states in the continuum. Nonlinear optics is a branch of optics that ...
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