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Lattice topology and spontaneous parametric down-conversion in quadratic nonlinear waveguide arrays

Leykam, Daniel; Solntsev, Alexander; Sukhorukov, Andrey; Desyatnikov, Anton S


We analyze spontaneous parametric down-conversion in various experimentally feasible one-dimensional quadratic nonlinear waveguide arrays, with emphasis on the relationship between the lattice's topological invariants and the biphoton correlations. Nontrivial topology results in a nontrivial "winding" of the array's Bloch waves, which introduces additional selection rules for the generation of biphotons, independent of existing control using the pump beam's spatial profile and phase-matching...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.92.033815


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