5 citations · 5 across the 3 of their papers we have counts for
3 papers
physics.class-ph2023
Higher-order exceptional points in loss-free waveguide arrays with negative-index materials
Xin-Zhe Zhang, Li-Ting Wu, Ru-Zhi Luo +1
Negative-index materials (NIMs) are shown to support optical anti-parity-time (anti-PT) symmetry even when they are lossless. Here we prove the feasibility in achieving higher-orde…
physics.optics2023★ 5 cited
Non-Hermitian guided modes and exceptional points using loss-free negative-index materials
Li-Ting Wu, Xin-Zhe Zhang, Ru-Zhi Luo +1
We analyze the guided modes in coupled waveguides made of negative-index materials without gain or loss. We show that it supports non-Hermitian phenomenon on the existence of guide…
physics.app-ph2019
Bending sound around sharp corners without using topological edge states
Liting Wu, Mourad Oudich, Wenkang Cao +8
Routing and guiding acoustic waves around sharp corners without backscattering losses is of great interest in the acoustics community. Sonic crystals have been primarily utilized t…