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Cascaded Brillouin-Kerr microcombs in surface nanoscale axial photonic resonators
Emily Eadie, Juan Diego Mazo-Vásquez, Sophia Padvaiskas +3
Surface nanoscale axial photonic resonators (SNAPRs) provide an axially structured whispering-gallery-mode platform in which nanoscale effective-radius variations produce spatially…
Higher-order exceptional points in a multimode continuum optoacoustic system
Anton Montag, Julius T. Gohsrich, Quentin Levoy +2
Exceptional points appear in non-Hermitian systems as degeneracies, where not only eigenvalues but also eigenvectors coalesce. They are of great theoretical and experimental intere…
Multi-dimensional parameter space of higher-order exceptional points induced by Brillouin optoacoustics
Grigorii Slinkov, Anton Montag, Julius T. Gohsrich +4
Exceptional points (EPs) are degeneracies in the spectrum of non-Hermitian systems, where both the eigenvalues and eigenvectors coalesce. In the vicinity of an n-th order EP, the e…
From order to chaos in a chip-scale Kerr parametric oscillator
Luca O. Trinchão, Juan Diego Mazo-Vásquez, Miguel Nienstedt +13
Integrated photonics has enabled a wide class of chip-scale light sources and quantum technologies. Within this field, microresonator-based degenerate optical parametric oscillator…
An Algebraic Approach to Bifurcations in Kerr Ring and Fabry-Perot Resonators
Juan Diego Mazo-Vasquez, Julius T. Gohsrich, Flore K. Kunst +1
Nonlinear phenomena such as optical bistability and spontaneous symmetry breaking play a central role in Kerr resonators, and are increasingly exploited in photonic integrated circ…
Color symmetry breaking in a nonlinear optical microcavity
Luca O. Trinchão, Alekhya Ghosh, Arghadeep Pal +8
Spontaneous symmetry breaking leads to diverse phenomena across the natural sciences, from the Higgs mechanism in particle physics to superconductors and collective animal behavior…
The analytically tractable zoo of similarity-induced exceptional structures
Anton Montag, Jordan Isaacs, Marcus Stålhammar +1
Exceptional points (EPs) are non-Hermitian spectral degeneracies marking a simultaneous coalescence of eigenvalues and eigenvectors. Despite the fact that multiband -fold EPs (E…
Exceptional, but Separate: Precursors to Spontaneous Symmetry Breaking
Lewis Hill, Julius T. Gohsrich, Alekhya Ghosh +3
Spontaneous symmetry breaking (SSB) and exceptional points (EPs) are often assumed to be inherently linked. Here we investigate the intricate relationship between SSB and specific…