Journal
OPTICS EXPRESS
Volume 25, Issue 8, Pages 8584-8592Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.25.008584
Keywords
-
Categories
Funding
- National Natural Science Foundation of China (NSFC) [11474180]
Ask authors/readers for more resources
We propose a type of ultra-thin metasurfaces composed of rectangular graphene patches supporting orthogonal plasmonic resonances, which can work in transmission or reflection modes for dynamic terahertz wavefront manipulation with high polarization conversion ratio. By controlling the response of each patch via electrical biasing, the phase of the output wave can be tuned in a wide range over 180 degrees while keeping its amplitude high and relatively stable. We demonstrate several functional devices based on such metasurfaces: a linear polarization converter with nearly 100% polarization conversion ratio, a switchable anomalous wave deflection device, and a dual-polarity focusing mirror with the focal spot tunable in both the transversal and longitudinal directions. (C) 2017 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available