1 May 2014 Fourier modal method for crossed gratings with Kerr-type nonlinearity
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We introduce a numerically feasible method for rigorous modeling of crossed diffraction gratings with isotropic third order nonlinear materials. The approach is based on an iterative solution of the crossed grating problem with anisotropic linear materials. Several numerical experiments are performed to demonstrate the versatility and numerical stability of our computation scheme. Resonance waveguide gratings made of isotropic cubic nonlinear materials are investigated numerically using this newly developed technique. A polarization-sensitive shift of resonance peak with variation of light intensity is numerically demonstrated.
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Subhajit Bej, Subhajit Bej, Jani Tervo, Jani Tervo, Jari Turunen, Jari Turunen, Yuri P. Svirko, Yuri P. Svirko, "Fourier modal method for crossed gratings with Kerr-type nonlinearity", Proc. SPIE 9131, Optical Modelling and Design III, 913116 (1 May 2014); doi: 10.1117/12.2051744; https://doi.org/10.1117/12.2051744

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