Microwave measurements of the photonic bandgap in a two-dimensional photonic crystal slab
J. M. Hickmann, D. Solli, C. F. McCormick, R. Plambeck, R. Y. Chiao
Abstract
We have measured the photonic bandgap in the transmission of microwaves through a two-dimensional photonic crystal slab. The structure was constructed by cementing acrylic rods in a hexagonal closed-packed array to form rectangular stacks. We find a bandgap centered at approximately 11 GHz, whose depth, width and center frequency vary with the number of layers in the slab, angle of incidence and microwave polarization.