Journal
PHYSICAL REVIEW B
Volume 87, Issue 20, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.205112
Keywords
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Funding
- ARO STTR project Dynamically Tunable Metamaterials
- AFOSR YIP Award [FA9550-11-1-0009]
- ONR MURI Grant [N00014-10-1-0942]
- DARPA SBIR project Nonlinear Plasmonic Devices
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We discuss the possibility of realizing utlrabroadband omnidirectional absorbers and angularly selective coherent thermal emitters based on properly patterned plasmonic metastructures. Instead of relying on resonant concentration effects that inherently limit the bandwidth, we base our design on the combination of two inherently nonresonant effects: plasmonic Brewster funneling and adiabatic plasmonic focusing. Using this approach, we propose compact, broadband absorption and emission spanning terahertz, infrared, and optical frequencies, ideal for various energy and defense applications.
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