4 papers
Alignment-Free Nanometric Optical Metrology Enabled by Structured Light
Yu Wang, Benquan Wang, Eng Aik Chan +7
Advances in the semiconductor industry are driven by the development of increasingly compact devices featuring intricate etched geometries, the characterization of which essentiall…
Extreme Energy Concentration of Band-Limited Superoscillatory Vortices for Efficient Optical Micromanipulation
Chengda Song, Jing He, Xi Xie +4
The Abbe diffraction limit, tied to the fundamental spatial bandwidth constraint imposed by any physical aperture, remains the primary barrier to achieving ultimate far-field optic…
Controllable Chirality Sorting of Particles via Topological Optical Quasiparticles
Hao Zhang, Xi Xie, Yijie Shen
The manipulation and sorting of chiral nanoparticles are of fundamental importance in multidisciplinary fields ranging from biochemistry to nanophotonics. In this study, we propose…
Free-form conformal metasurfaces robustly generating topological skyrmions
Yang Fu, Rensheng Xie, Nilo Mata-Cervera +5
Skyrmions are topologically stable vector textures as potential information carriers for high-density data storage and communications, especially boosted by the recently emerging m…