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physics.optics2024
Unidirectional Amplification in the Frozen Mode Regime Enabled by a Nonlinear Defect
Serena Landers, William Tuxbury, Ilya Vitebskiy +1
A stationary inflection point (SIP) is a spectral singularity of the Bloch dispersion relation of a periodic structure where the first and the second derivatives of with…
physics.optics2024★ 6 cited
Nonlinearity-induced Scattering Zero Degeneracies for Spectral Management of Coherent Perfect Absorption in Complex Systems
Cheng-Zhen Wang, John Guillamon, William Tuxbury +2
We develop a Coherent Perfect Absorption (CPA) protocol for cases where scale invariance is violated due to the presence of nonlinear mechanisms. We demonstrate, using a microwave…