Flat optics: structuring light with metasurfaces (Prof. F. Capasso)
- Date: Jan 11, 2016
- Time: 03:30 PM - 05:00 PM (Local Time Germany)
- Speaker: Prof. Dr. Federico Capasso, School of Engineering and Applied Sciences, Harvard University, Cambridge MA
- Room: Herbert Walther Lecture Hall
- Host: MPQ, Laser Spectroscopy Division
Patterning surfaces with subwavelength spaced metallo-dielectric features (metasurfaces) allows one to generate complex 3D and 2D wavefronts by locally controlling the amplitude, phase and polarization of the scattered light.
1,2 Recent results on achromatic lenses and collimators as well as chiral holograms will be presented. Metasurfaces have also become a powerful tool to shape surface waves. I will present experiments on imaging surface plasmons that have revealed the formation of Cherenkov wakes and their control with one dimensional metastructures.
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)