Optimal poling of nonlinear photonic crystals for frequency conversion.
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.
Norton
Andrew H
AH
School of Physics A28, University of Sydney, Sydney, New South Wales 2006, Australia. andrewn@physics.usyd.edu.au
de Sterke
C Martijn
CM