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physics.app-ph2025
Acoustic helical dichroism enhanced by chiral quasi-bound states in the continuum
Qing Tong, Tong Fu, Yuqiong Cheng +1
Acoustic helical dichroism (HD) arises from the interaction between vortex beams carrying orbital angular momentum (OAM) and chiral media, yet such chiral sound-matter interactions…
physics.optics2025
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…
physics.optics2025
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…