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Exceptional Surfaces in PT-Symmetric Photonic Systems
Hengyun Zhou, Jong Yeon Lee, Shang Liu +1
Exceptional points in non-Hermitian systems have recently been shown to possess nontrivial topological properties, and to give rise to many exotic physical phenomena. However, most…
Observation of Bulk Fermi Arc and Polarization Half Charge from Paired Exceptional Points
Hengyun Zhou, Chao Peng, Yoseob Yoon +6
The ideas of topology have found tremendous success in Hermitian physical systems, but even richer properties exist in the more general non-Hermitian framework. Here, we theoretica…
Perfect Single-Sided Radiation and Absorption without Mirrors
Hengyun Zhou, Bo Zhen, Chia Wei Hsu +4
Highly directional radiation from photonic structures is important for many applications, including high power photonic crystal surface emitting lasers, grating couplers, and light…