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Collinear second harmonic generation of 20 wavelengths in a single two-dimensional decagonal nonlinear photonic quasi-crystal

Sheng, Yan; Koynov, Kaloian; Zhang, Daozhong


We report on the observation of quasi-phase matched collinear second harmonic generation (SHG) at 20 wavelengths in a two-dimensional nonlinear photonic quasi-crystal with decagonal lattice. We show that at some wavelengths the second harmonics are generated via standard quasi-phase matching, namely a reciprocal vector exists that equals the phase-mismatch vector, while at others the SHG is as a result of the projection-based quasi-phase matching in which the momentum conservation is satisfied...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Optics Communications
DOI: 10.1016/j.optcom.2009.05.075


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