Spatiotemporal light control with frequency-gradient metasurfaces
Abstract
Metasurfaces have been designed that function as many passive optical elements. Shaltout et al. created a time-dependent active element. A frequency-comb light beam (a light source consisting of a broad range of evenly spaced wavelengths) interacted with a specially designed passive metasurface so that the beam could be rapidly (<8 picoseconds) swept over a broad angle (25°). Such beam-steering capability could directly affect augmented and virtual reality systems.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 26, 2019
- Source ID
- 10.1126/science.aax2357
Entities
People
- Amr M Shaltout
- Jelena Vučković
- Jorik van de Groep
- Konstantinos G Lagoudakis
- Mark L. Brongersma
- Soo Jin Kim
- Vladimir Shalaev
Organizations
- Air Force Office of Scientific Research
- Korea University
- Purdue University
- Stanford University
- University of Strathclyde