Journal
OPTICS LETTERS
Volume 35, Issue 9, Pages 1317-1319Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.35.001317
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Funding
- Max-Plank Society
- Chinese Academy of Science (CAS)
- Australian Research Council
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We analyze the conical second-harmonic generation via Cerenkov-type phase matching in two-dimensional decagonal nonlinear photonic quasi-crystals for linear, circular, and elliptical polarized fundamental beams. Depending on the polarization state, we observe either centrosymmetric or noncentrosymmetric intensity modulation of the second-harmonic rings. We explain this effect by employing the concept of effective quadratic nonlinearity combined with the hexagonal symmetry of the individual ferroelectric domains. (C) 2010 Optical Society of America
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