5 papers · 1 filter
Disorder-enabled Synthetic Metasurfaces
Chi Li, Changxu Liu, Cade Peters +4
Optical metasurfaces have catalyzed transformative advances across imaging, optoelectronics, quantum information processing, sensing, energy conversion, and optical computing. Yet,…
Resonant helical dichroism in twisted dielectric metastructures
Yiyuan Wang, Chi Li, Haoyi Yu +4
Circular dichroism, arising from interactions with light fields of opposite spin angular momentum, has become a fundamental tool for molecular characterization. Meanwhile, helical…
Compact orbital-angular-momentum multiplexing via laser-written glass chips
Chenhao Li, Simon Gross, Leonardo de S. Menezes +3
Orbital angular momentum (OAM) modes have emerged as a promising solution for enhancing the capacity of optical multiplexing systems, leveraging their theoretically unbounded set o…
Valley optoelectronics based on meta-waveguide photodetectors
Chi Li, Kaijian Xing, Wenhao Zhai +10
In transition metal dichalcogenides, the valley degree of freedom directly couples valley-polarised excitons - excited by circularly polarised light - to valley-dependent chiral ph…
Ultranarrow-linewidth Wavelength-Vortex Metasurface Holography
Weijia Meng, Johannes E. Fröch, Ke Cheng +6
Ultrathin metasurface holograms, with thicknesses comparable to the operating wavelength, leverage multiple degrees of freedom of light to address independent image channels, there…