Parity anomaly laser
arXiv:1811.06300 · doi:10.1364/OL.44.001120
Abstract
We propose a novel supersymmetry-inspired scheme for achieving robust single mode lasing in arrays of coupled microcavities, based on factorizing a given array Hamiltonian into its "supercharge" partner array. Pumping a single sublattice of the partner array preferentially induces lasing of an unpaired zero mode. A chiral symmetry protects the zero mode similar to 1D topological arrays, but it need not be localized to domain walls or edges. We demonstrate single mode lasing over a wider parameter regime by designing the zero mode to have a uniform intensity profile.
arXiv commentPublished version. 5 pages, 6 figures
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Cited by in corpus (6)
- Nonlinear topological photonics
- Observation of supersymmetric pseudo-Landau levels in strained microwave graphene
- Non-Hermitian laser arrays with tunable phase locking
- High Efficiency Topological Pumping with Discrete Supersymmetry Transformations
- Isospectral and square root Cholesky photonic lattices
- Lasing in para-Fermi class-B microring resonator arrays