2 papers
physics.optics2026
High-Order Perfect Absorption in the Absence of Exceptional Point
Huisheng Xu, Luojia Wang, Luqi Yuan +1
High-order perfect absorption of coherent input has recently attracted significant attention due to its broadband absorption capacity. However, the realization of a high-order perf…
physics.optics2025
Probing Bulk Band Topology from Time Boundary Effect in Synthetic Dimension
Huisheng Xu, Zhaohui Dong, Luqi Yuan +1
An incident wave at a temporal interface, created by an abrupt change in system parameters, generates time-refracted and time-reflected waves. We find topological characteristics a…