Journal
OPTICS EXPRESS
Volume 20, Issue 11, Pages 12155-12165Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.012155
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Funding
- Air Force Office [FA9550-10-1-0226]
- National Science Foundation [0925542]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0925542] Funding Source: National Science Foundation
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We demonstrate the potential of highly-doped semiconductor epilayers as building blocks for mid-infrared plasmonic structures. InAs epilayers are grown by molecular beam epitaxy and characterized by Hall measurements and optical techniques. We show that the plasma frequency of our material can be controlled across a broad range of mid-infrared frequencies. Subwavelength disks are fabricated out of our material, and localized plasmonic resonances are observed from these structures. Experimental results are compared to both numerical simulations and a simple quasistatic dipole model of our disks with good agreement. (C) 2012 Optical Society of America
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