Abstract
A Kerr-effect sensitive microcavity device based on the two-dimensional pillar-array hybrid nonlinear photonic crystal slab has been designed for all-optical switching. The cavity is made from infiltrating the void space of the pillar-array semiconductor photonic crystal slab with polystyrene. The structure parameters have been optimized by numerical simulations based on the three-dimensioanl finite-difference time-domain method. It is found that the resonant wavelength can shift 15 nm under the pump light with an intensity of 80  GW/cm2, which is far larger than the shift magnitude of the holes-array nonlinear photonic crystal slab.
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