Invited Paper IPF+MS-MoA5
Structured Light and Structured Surface Waves from Metasurfaces
Monday, October 19, 2015, 3:40 pm, Room 210F
Patterning surfaces with subwavelength spaced metallo-dielectric features (metasurfaces) allows one to locally control the amplitude, phase and polarization of the scattered light, allowing one to generate complex wavefronts such as optical vortices of different topological charge and dislocated wavefronts. 1,2 Recent results on achromatic metasurfaces will be presented including lenses and collimators. Metasurfaces have also become a powerful tool to shape surface plasmon polaritons (SPPs) and more generally surface waves. I will present new experiments on imaging SPP that have revealed the formation of Cherenkov SPP wakes and demonstrated polarization sensitive light couplers that control the directionality of SPP and lenses which demultiplex focused SPP beams depending on their wavelength and polarization.
1. N. Yu and F. Capasso Nature Materials 13, 139 (2014)
2. P. Genevet and F. Capasso Reports on Progress in Physics 78, 24401 (2015)