@article {26356, title = {Multifunctional plasmonic metasurface demultiplexer and wavelength-polarization controllable beam splitter}, journal = {J. Opt. Soc. Am. B}, volume = {38}, year = {2021}, pages = {C50-C57}, abstract = {We report the experimental realization of a multifunctional microscale plasmonic metasurface capable of sampling a light beam and performing five functionalities, while allowing high direct transmission and maintenance of the properties of the input light beam. The plasmonic metasurface integrates light-to-surface-plasmon coupling, two-channel wavelength demultiplexing with a channel spacing smaller than 44\ nm, wavelength and polarization controllable beam splitting of a\ monochromatic, single polarization\ signal, and four-level polarization and wavelength-polarization demultiplexing in an all-in-one structure. Such a device can play a key role for on-chip adaptable integrated circuits for parallel signal processing, communications, and nondestructive sensing.}, url = {https://doi.org/10.1364/JOSAB.426434}, author = {Benetou, M.I. and K. L. Tsakmakidis} }