#On-chip spin-Hall nanograting for simultaneously detecting phase and polarization singularities
“#On-chip spin-Hall nanograting for simultaneously detecting phase and polarization singularities” Schematic of the designed structure under illumination of two OAM beams with different polarization states and topological charges Credit: Fu Feng, Guangyuan Si, Changjun Min, Xiaocong Yuan, Michael Somekh A plasmonic spin-Hall nanograting structure that simultaneously detects both the polarization and phase singularities of the…