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Free-electron Brewster radiation
Ruoxi Chen, Jialin Chen, Zheng Gong +7
Free-electron radiation offers an enticing route to create light emission at arbitrary spectral regime. However, this type of light emission is generally weak, which is intrinsical…
Realization of a quadrupole topological insulator phase in a gyromagnetic photonic crystal
Peiheng Zhou, Gui-Geng Liu, Zihao Wang +8
The field of topological photonics was initiated with the realization of a Chern insulator phase in a gyromagnetic photonic crystal (PhC) with broken time-reversal symmetry (T), ho…
Dipole-matter interactions governed by the asymmetry of Maxwell equations
Yuhan Zhong, Chan Wang, Chenxu Bian +8
Directionally molding the near-field and far-field radiation lies at the heart of nanophotonics and is crucial for applications such as on-chip information processing and chiral qu…
Low-velocity-favored transition radiation
Jialin Chen, Ruoxi Chen, Zheng Gong +8
When a charged particle penetrates through an optical interface, photon emissions emerge - a phenomenon known as transition radiation. Being paramount to fundamental physics, trans…
Topology with memory in nonlinear driven-dissipative photonic lattices
Subhaskar Mandal, Gui-Geng Liu, Baile Zhang
We consider a photonic lattice of nonlinear lossy resonators subjected to a coherent drive, where the system remembers its topological phase. Initially, the system is topologically…
Amplification of quantum signals by the non-Hermitian skin effect
Qiang Wang, Changyan Zhu, You Wang +2
The non-Hermitian skin effect (NHSE) is a phenomenon whereby certain non-Hermitian lattice Hamiltonians, particularly those with nonreciprocal couplings, can host an extensive numb…