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physics.class-ph2022
Sound Waveguiding by Spinning: An Avenue towards Unidirectional Acoustic Spinning Fibers
Mohamed Farhat, Pai-Yen Chen, Ying Wu
Waveguiding in general and acoustic waveguiding in particular are possible at the condition of having a transverse "discontinuity" or modulation of the refractive index. We propose…
physics.optics2022
Wave propagation, bidirectional transparency, and coherent perfect absorption-lasing in finite periodic PT-symmetric waveguide networks
Jeng Yi Lee, Pai-Yen Chen
We theoretically and numerically investigate the scattering behavior of a periodic parity-time (PT)-symmetric waveguide network composed of a finite number of unit cells. Specifica…