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Opt Lett. 2003 Feb 1;28(3):188-90.

Optimal poling of nonlinear photonic crystals for frequency conversion.

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  • 1School of Physics A28, University of Sydney, Sydney, New South Wales 2006, Australia.


Nonlinear photonic crystals formed by two-dimensional periodic poling of the quadratic susceptibility chi(2) can support quasi-phase-matched harmonic generation. The frequency-conversion efficiency depends on the photonic crystal's poling pattern through certain Fourier coefficients of the poling function. A procedure is described for finding those poling patterns that are most efficient for any specific quasi-phase-matched frequency-conversion scheme.

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