2 papers
physics.optics2025
Noise-Induced Limits on Responsivity and SNR for Nonlinear Exceptional Point Sensing
Todd Darcie, J. Stewart Aitchison
Exceptional points (EPs) have been suggested for ultra-sensitive sensing because the eigenfrequency splitting grows as the nth-root of a perturbation, suggesting divergent responsi…
physics.optics2024
Responsivity and Stability of Nonlinear Exceptional Point Lasers with Saturable Gain and Loss
Todd Darcie, J. Stewart Aitchison
The responsivity of perturbation sensing can be effectively enhanced by using higher-order exceptional points (HOEPs) due to their nonlinear response to frequency perturbations. Ho…