2 papers
physics.optics2025
Focal control and light tracing on curved surfaces with isotropic transformation medium
Xiaoyu Zhao, Longfei Shi, Zhuoyu Zhang +4
Optics related to non-Euclidean geometry has been attracting growing interest for emerged novel phenomena and the analog for general relativity, while most studies are limited to t…
physics.optics2024
Topological invariant of non-Hermitian space-time modulated photonic crystals
Xiaoke Gao, Xiaoyu Zhao, Jiawei Wang +2
We propose a medium transformation approach to formulate the adjoint system of space-time modulated photonic crystals (STMPCs), essential for the bi-orthogonal Berry connection whe…