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Sculpturing sound fields with real-space topology
Qing Tong, Shubo Wang
Artificial structures have been widely used to manipulate sound fields. Most properties of these structures derive from the material and geometry. Few are explicitly related to the…
Near-field Spin Chern Number Quantized by Real-space Topology of Optical Structures
Tong Fu, Ruo-Yang Zhang, Shiqi Jia +2
The Chern number has been widely used to describe the topological properties of periodic structures in the momentum space. Here, we introduce a real-space spin Chern number for the…
Broadband and large-area optical chirality generated by an achiral metasurface under achiral excitation
Shiqi Jia, Tong Fu, Jie Peng +1
Optical chirality plays an essential role in chiral light-matter interactions with broad applications in sensing and spectroscopy. Conventional methods of generating optical chiral…
Multiplexing spectral line shape of waveguide transmission by photonic spin-orbit interaction
Yuqiong Cheng, Wanyue Xiao, Shubo Wang
Manipulating the spectral line shape exhibits great potential in realizing active optical circuits with switching, sensing, and modulation capabilities. Exploring unusual line shap…
Acoustic circular dichroism in a three-dimensional chiral metamaterial
Qing Tong, Jensen Li, Shubo Wang
Circular dichroism (CD) is an intriguing chiroptical phenomenon associated with the interaction of chiral structures with circularly polarized lights. Although the CD effect has be…