3 papers
physics.optics2026
Probing mesoscopic nonlocal screening in van der Waals heterostructures with polaritons
Xuezhi Ma, Zhipeng Li, Ruihuan Duan +17
Predictive optical modelling of van der Waals (vdW) heterostructures is critical for meta-optics, near-field photonics and quantum technologies. At their buried interfaces, charge…
physics.optics2024
Spatiotemporal Superfocusing
Qianru Yang, Haotian Wu, Hao Hu +3
Superfocusing confines light within subwavelength structures, breaking the diffraction limit. Structures with spatial singularities, such as metallic cones, are crucial to enable n…
physics.optics2024
Enhanced Cherenkov radiation in twisted hyperbolic Van der Waals crystals
Hao Hu, Xiao Lin, Guangwei Hu +2
Cherenkov radiation in artificial structures experiencing strong radiation enhancements promises important applications in free-electron quantum emitters, broadband light sources,…