Broadband third-harmonic generation in two-dimensional short-range ordered nonlinear photonic structure |
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Authors: | Y Sheng W Wang K Kalinowski K Koynov W Krolikowski |
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Institution: | (1) Department of Physical Electronics, School of Electrical Engineering, Tel-Aviv University, Tel-Aviv, 69978, Israel |
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Abstract: | 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. |
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Keywords: | |
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