The need to replace bulk classical optical elements with their compact nanoscale counterparts stimulates research of new materials, their production and processing methods, optical properties calculation, and experimental verification. The possibility of using laser-induced periodic structures on the surface of thin chalcogenide As50Se50 films as polarization optics elements has been studied. Designing the surface relief allows one to create waveplates with predetermined electromagnetic properties.
Musorin et al. (2025) studied this question.