Diffraction of a polarized Gaussian beam on elliptical and circular plates

In this work, using the finite differences time domain (FDTD) method, we calculated the diffraction of a polarized Gaussian laser beam both on a set of elliptical and circular dielectric plates rotated relative to each other which can be considered as a twisted waveguide. The possibility of forming beams resembling a helical photonic jet and light traps is shown.