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4 papers · 2 filters
Realization of Photonic Charge-2 Dirac Point by Engineering Super-modes in Topological Superlattices
Mengying Hu, Kun Ding, Tong Qiao +4
Quite recently a novel variety of unconventional fourfold linear band degeneracy points has been discovered in certain condensed-matter systems. Contrary to the standard 3-D Dirac…
Controlling Thermal Emission by Parity-symmetric Fano Resonance of Optical Absorbers in Metasurfaces
Xia Zhang, Zhen-guo Zhang, Qiang Wang +2
In this study, we designed a metasurface based on Al/SiN/Al nano-sandwich optical absorbers. Parity-symmetric dark magnetic resonance modes, anti-symmetric bright magnetic resonanc…
Bound States in the Continuum in Bilayer Photonic Crystal with TE-TM Cross-Coupling
Hong-Fei Wang, Samit Kumar Gupta, Xue-Yi Zhu +3
Bound states in the continuum (BICs) in photonic crystals represent the unique solutions of wave equations possessing an infinite quality-factor. We design a type of bilayer photon…
An Exciton-Polariton Fano Resonance Driven by Second Harmonic Generation
Yafeng Wang, Liming Liao, Tao Hu +9
Angle-resolved second harmonic generation (SHG) spectra of ZnO microwires show characteristic Fano resonances in the spectral vicinity of exciton-polariton modes. The output SHG sp…