Accession Number : AD1042771


Title :   Realization of Configurable One-Dimensional Reflectarray


Descriptive Note : Technical Report,15 Jun 2016,15 Jun 2017


Corporate Author : Regents of the University Of Minnesota Minneapolis United States


Personal Author(s) : Low,Tony ; Oh,Sang-Hyun ; Tischler,Joseph


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1042771.pdf


Report Date : 31 Aug 2017


Pagination or Media Count : 20


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.


Descriptors :   fabrication , beam steering , detectors , far field , nitric acid , quantum cascade lasers , electron beam lithography , light sources , surface plasmon resonance , electron beams , graphene , beam forming , plasmons , one dimensional , nanostructures , metamaterials


Subject Categories : Industrial Chemistry and Chemical Processing
      Inorganic Chemistry
      Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE