Realization of Configurable One-Dimensional Reflectarray
Abstract
A fundamental challenge remains in dynamically controlling the steering of long wavelength radiation ( lambda > 8 micrometer) using metal nanostructures or metamaterials (with critical dimensions ~10 nm), where one is faced with a large scale mismatch up to 4-5 orders of magnitude and therefore intrinsically weak light-matter interations. Here we report the proof-of-principle demonstration of anomalous reflection, where simulations and experiments show strong signatures of beam steering that are dependent upon graphene doping. This seed grant has allowed our team to establish the essential operating procedures (i.e. modeling, fabrication, and scatterometry) for the eventual realization of efficient, electrically-configurable, graphene-based, one-dimensional reflectarrays. Several immediate improvements to the device design and process flow are essential to suppress specular components of the reflected beams.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 31, 2017
- Accession Number
- AD1042771
Entities
People
- Joseph G Tischler
- Sang-Hyun Oh
- Tony Low
Organizations
- Regents of the University of Minnesota