Abstract

We propose a novel and simple concept of dynamic switching of guided-mode resonant grating filters with quadratic electro-optic effect within a waveguide layer modulated by external fields due to comb-shaped electrodes that also behave as a grating. As the device has subwavelength structure, the performance must be analyzed electromagnetically. We describe numerical simulation with the finite-difference time-domain method specially modified so that it can treat inhomogeneous anisotropic media such as lead lanthanum zirconate titanate.

© 2005 Optical Society of America

Numerical study on an asymmetric guided-mode resonant grating with a Kerr medium for optical switching

Akio Mizutani, Hisao Kikuta, and Koichi Iwata
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Computational design for guided-mode grating resonances

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Tunable electro-optic wavelength filter based on lossy-guided mode resonances

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