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Proceedings Paper

Active mid-infrared plasmonic beam steering devices
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Paper Abstract

We demonstrate the steering of coherent mid-infrared radiation through plasmonic structures consisting of a single sub-wavelength slit flanked by a periodic array of grooves, fabricated on GaAs substrates. We demonstrate control of steering angle by tuning the incident radiation, and study beam quality for the transmitted light. In addition, we demonstrate that small shifts in the refractive index of the GaAs substrate can actively control the steering angle of the transmitted light, opening a path towards the development of no-moving-parts plasmonic beam steering devices.

Paper Details

Date Published: 10 September 2010
PDF: 7 pages
Proc. SPIE 7756, Active Photonic Materials III, 775616 (10 September 2010); doi: 10.1117/12.859285
Show Author Affiliations
D. C. Adams, Univ. of Massachusetts Lowell (United States)
T. Ribaudo, Univ. of Massachusetts Lowell (United States)
S. Thongrattanasiri, Oregon State Univ. (United States)
E. A. Shaner, Sandia National Labs. (United States)
V. A. Podolskiy, Univ. of Massachusetts Lowell (United States)
D. Wasserman, Univ. of Massachusetts Lowell (United States)

Published in SPIE Proceedings Vol. 7756:
Active Photonic Materials III
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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