Dataset for: Ultrafast laser-induced metasurfaces for geometric phase manipulations

摘要: Direct-write femtosecond laser nanostructuring of 300 nanometer thick a-Si:H films results in space-variant functional metasurfaces with form birefringence up to ne-no=–0.5. Engineering the orientation local optical axis allows implementing continuous phase profiles nearly any element including arrays polarization micro-converters and micro lenses, gratings computer generated holograms gradients ~1 rad/µm.