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Synthetic SU(1,1) Gauge Control of Non-Hermitian Light
Wanyue Xiao, Ruo-Yang Zhang, Yuqiong Cheng +1
Synthetic gauge fields enable nontrivial light control but remain largely restricted to compact groups such as U(1) and SU(2). Here, we study paraxial light propagation under a non…
Strong optical nonreciprocity in a photonic crystal composed of spinning cylinders
Hengzhi Li, Wanyue Xiao, Junho Jung +2
Moving media break time-reversal symmetry and exhibit intriguing optical nonreciprocity. This nonreciprocity is usually weak due to the much lower moving speed of media relative to…
Riemann-Silberstein geometric phase in 4D polarization space
Yuqiong Cheng, Yuan-Song Zeng, Wanyue Xiao +5
Geometric phase is a far-reaching concept in quantum and classical physics. The first discovered geometric phase, the Pancharatnam-Berry (PB) phase, has profoundly shaped nanophoto…
Optical force and torque on a spinning dielectric sphere
Hengzhi Li, Wanyue Xiao, Tong Fu +2
Optical force can enable precise manipulations of small particles for various applications. It is well known that an isotropic lossless dielectric sphere is only subject to forward…
Nonreciprocal optical metasurface based on spinning cylinders
Zheng Yang, Wanyue Xiao, Hengzhi Li +2
Optical systems breaking Lorentz reciprocity have attracted broad attention due to their intriguing physics and applications. Nonreciprocal metasurfaces can enable one-way light tr…
Directional sources realised by toroidal dipoles
Junho Jung, Yuqiong Cheng, Wanyue Xiao +1
Directional optical sources can give rise to the directional excitation and propagation of light. The directionality of the conventional directional dipole (CDD) sources are attrib…
On-chip optical wavefront shaping by transverse spin induced Pancharatanam-Berry phase
Wanyue Xiao, Shubo Wang
Pancharatnam-Berry (PB) metasurfaces can be applied to manipulate the phase and polarization of light within subwavelength thickness. The underlying mechanism is attributed to the…