Non-resonant exceptional points as enablers of noise-resilient sensors
W Tuxbury, R Kononchuk, T Kottos - Communications Physics, 2022 - nature.com
Exceptional point degeneracies (EPDs) in the resonant spectrum of non-Hermitian systems
have been recently employed for sensing due to the sublinear response of the resonance …
have been recently employed for sensing due to the sublinear response of the resonance …
Lasing at a stationary inflection point
The concept of lasers based on the frozen mode regime in active periodic optical
waveguides with a 3rd-order exceptional point of degeneracy (EPD) is advanced. The …
waveguides with a 3rd-order exceptional point of degeneracy (EPD) is advanced. The …
Exceptional-point degeneracy as a desirable operation point for an oscillator array with discrete nonlinear gain and radiative elements
A Nikzamir, F Capolino - Physical Review Applied, 2024 - APS
We show that an oscillator array prefers to operate at an exceptional point of degeneracy
(EPD) occurring in a waveguide periodically loaded with discrete nonlinear gain and …
(EPD) occurring in a waveguide periodically loaded with discrete nonlinear gain and …
Unidirectional amplification in the frozen mode regime enabled by a nonlinear defect
A stationary inflection point (SIP) is a spectral singularity of the Bloch dispersion relation ω
(k) of a periodic structure where the first and the second derivatives of ω with respect to k …
(k) of a periodic structure where the first and the second derivatives of ω with respect to k …
Third-order exceptional points and frozen modes in planar elastic laminates
Exceptional points (EPs) are degeneracies of two or more natural modes of open systems,
which lead to unusual wave phenomena. Despite the robustness against imperfections of …
which lead to unusual wave phenomena. Despite the robustness against imperfections of …
Unidirectional Amplification in the Frozen Mode Regime Enabled by a Nonlinear
S Landers, W Tuxbury, I Vitebskiy, T Kottos - 2024 - opg.optica.org
ABSTRACT A stationary inflection point (SIP) is a spectral singularity of the Bloch dispersion
relation 𝝎 (𝒌) of a periodic structure where the first and the second derivatives of 𝝎 with …
relation 𝝎 (𝒌) of a periodic structure where the first and the second derivatives of 𝝎 with …
Nonlinear wavepacket dynamics in proximity to a stationary inflection point
A stationary inflection point (SIP) in the Bloch dispersion relation of a periodic waveguide is
an exceptional point degeneracy where three Bloch eigenmodes coalesce, forming the so …
an exceptional point degeneracy where three Bloch eigenmodes coalesce, forming the so …