|M.Sc Student||Maguid Elhanan|
|Subject||Manipulation of Light by Spin-Optical Metasurfaces|
|Department||Department of Mechanical Engineering||Supervisor||Professor Erez Hasman|
|Full Thesis text|
Spinoptics provides a route to control light, whereby the photon helicity - spin angular momentum - degeneracy is removed due to a geometric gradient onto a metasurface. The alliance of spinoptics and metamaterials offers the dispersion engineering of a structured matter in a polarization helicity dependent manner. We show that polarization-controlled optical modes of metamaterials arise, where the spatial inversion symmetry is violated. The emerged spin-split dispersion of spontaneous emission originates from the spin-orbit interaction of light generating a selection rule based on symmetry restrictions in a spinoptical metamaterial. The inversion asymmetric metasurface is obtained via anisotropic optical antenna patterns. This type of metamaterial provides a route for spin-controlled nanophotonic applications based on the design of the metasurface symmetry properties.