Abstract

We present the results of our recent research on 3D metallic lattices operating at microwave frequencies, with applications in advanced accelerating structures and radiation sources based on the Smifh-Purcell effect. Bulk and surface electromagnetic waves supported by a diamond lattice of metal wires are calculated using HFSS. The bulk modes are determined using calculation of a primitive cell of diamond lattice. The surface mode is determined using simulation of a stack of cells with the perfect-matching layer boundary in vacuum. A plasmonic waveguide is formed as a defect in a diamond lattice. The plasmonic waveguide mode can be employed for particle acceleration.

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