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Parity anomaly laser

Smirnova, Daria; Padmanabhan, Pramod; Leykam, Daniel


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...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Optics Letters
DOI: 10.1364/OL.44.001120


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