Broadband third-harmonic generation in two-dimensional short-range ordered nonlinear photonic structure
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We study parametric frequency conversion in two-dimensional nonlinear photonic crystal with short-range ordered ferroelectric domains. We demonstrate that the short-range order enables broadband third-harmonic generation via cascading of two second-order quasi-phase matched nonlinear processes. We obtain conversion efficiencies that are much higher than those achieved from a randomized medium, owing to the unique distribution of reciprocal lattice vectors in the short-range ordered structure. © Springer-Verlag 2011.
author list (cited authors)
Sheng, Y., Wang, W., Kalinowski, K., Koynov, K., & Krolikowski, W.