Complete polarization conversion using anisotropic temporal slabs

It is well known that control over the polarization of electromagnetic waves can be achieved by utilizing artificial anisotropic media such as metamaterials. However, most of the related research has been focused on time-invariant systems. Inspired by the concept of temporal boundaries, we propose a method to realize polarization conversion in real time by employing time-variant materials, whose permittivity or permeability switches between isotropic and anisotropic values. The criteria for complete polarization conversion are studied for several polarization angles, both analytically and numerically. (C) 2021 Optical Society of America

Automated summary

This paper proposes a method to achieve real-time polarization conversion using time-variant materials, and studies the criteria for complete polarization conversion for several polarization angles through analytical and numerical methods.