556 citations · 4k across the 49 of their papers we have counts for
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Valley vortex states and degeneracy lifting via photonic higher-band excitation
Daohong Song, Daniel Leykam, Jing Su +7
We demonstrate valley-dependent vortex generation in a photonic graphene. Without breaking the inversion symmetry, excitation of two equivalent valleys leads to formation of an opt…
Unconventional Flatband Line States in Photonic Lieb Lattices
Shiqi Xia, Ajith Ramachandran, Shiqiang Xia +9
Flatband systems typically host "compact localized states"(CLS) due to destructive interference and macroscopic degeneracy of Bloch wave functions associated with a dispersionless…
Observation of microscale nonparaxial optical bottle beams
Raluca-Sorina Penciu, Yujie Qiu, Michael Goutsoulas +5
We predict and experimentally observe three-dimensional microscale nonparaxial optical bottle beams based on the generation of a caustic surface under revolution. Such bottle beams…
Observation of valley Landau-Zener-Bloch oscillations and pseudospin imbalance in photonic graphene
Yong Sun, Daniel Leykam, Stephen Nenni +4
We demonstrate inter-valley Bloch oscillation (BO) and Landau-Zener tunneling (LZT) in an optically-induced honeycomb lattice with a refractive index gradient. Unlike previously ob…
Airy-soliton interactions in self-defocusing media with PT potentials
Zhiwei Shi, Huagang Li, Xing Zhu +1
We investigate Airy-soliton interactions in self-defocusing media with PT potentials in one transverse dimension. We discuss different potentials in which the interacting beams wit…