Inverse design of plasma metamaterial devices with realistic elements

In an expansion of a previous study [1], we apply inverse design methods to produce two-dimensional plasma metamaterial devices with realistic elements which incorporate quartz envelopes, collisionality (loss), non-uniform density profiles, and resistance experimental error/perturbation. Backpropagated finite difference frequency domain simulations are used waveguides demultiplexers operating under the transverse magnetic polarization. Optimal compared idealized elements, several parameter initialization schemes for optimization algorithm explored. Demultiplexing waveguiding demonstrated microwave-regime composed reasonable space-averaged frequencies ~10 GHz collision ~1 GHz, allowing future in-situ training realization these designs.