Phys.org March 16, 2023
Metasurfaces have shown remarkable potential to manipulate many of light’s intrinsic properties, such as phase, amplitude, and polarization. An international team of researchers (Saudi Arabia, Macedonia, USA – New York University) has demonstrated a broadband multifunctional metasurface platform with the unprecedented ability to independently control the phase profile for two orthogonal polarization states of incident light over dual-wavelength spectra (ultraviolet to visible). They designed and fabricated multiple single-layered metasurfaces composed of bandgap-engineered silicon nitride nanoantennas and optically characterized to demonstrated broadband multifunctional light manipulation ability, including structured beam generation and meta-interferometer implementation. According to the researchers their work opened new avenues for broadband multifunctional applications including ultraviolet–visible spectroscopy, spatially modulated illumination microscopy, optical data storage, and information encoding… read more. TECHNICAL ARTICLE
Graphical abstract. Credit: Nano Lett. 2023, 23, 4, 1195–1201, January 9, 2023