2 papers
physics.optics2026
Observation of Janus Chirality for Coherent Thermal Emission from Metasurfaces
Kaili Sun, Yangjian Cai, Maxim V. Gorkunov +2
Metasurfaces emerged as a powerful tool for controlling thermal radiation, yet achieving coherent emission with opposite circular handednesses remains a highly challenging problem.…
physics.optics2025
Broadband-operational orbital angular momentum generation in nonlocal metasurfaces with maximum efficiency approaching 80%
Keren Wang, Kaili Sun, Jing Du +5
Nonlocal metasurfaces provide a compact route to generating momentum-space optical vortices but are limited by steep dispersion typically associated with high-quality (Q) factor re…