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 $\omega (k)$ of a periodic structure where the first and the second derivatives of $\omega$ with…