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Proceedings Paper

Beam shaping and manipulation in photonic crystal structures (presentation video)
Author(s): Anna C. Tasolamprou; Lei Zhang; Maria Kafesaki; Thomas Koschny; Costas M. Soukoulis
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Paper Abstract

Photonic crystals may support the propagation of surface waves, provided that they are properly terminated. An additional grating like-layer may facilitate the coupling of the surface waves to outgoing propagating waves leading to enhanced transmission and directionality of the beam. This work investigates and demonstrates how the proper design of the grating layer provides control over the beam shape and emission angle. We also demonstrate both experimentally and theoretically, that a single bilayer dielectric structure allows for the collimation and enhanced transmission of a Gaussian incident beam, while a system of multiple cascading bilayers can sustain the beam for large propagation distances.

Paper Details

Date Published: 17 August 2014
PDF: 1 pages
Proc. SPIE 9162, Active Photonic Materials VI, 91620I (17 August 2014); doi: 10.1117/12.2064169
Show Author Affiliations
Anna C. Tasolamprou, Foundation for Research and Technology-Hellas (Greece)
Lei Zhang, Iowa State Univ. (United States)
Maria Kafesaki, Foundation for Research and Technology-Hellas (Greece)
Thomas Koschny, Iowa State Univ. (United States)
Costas M. Soukoulis, Iowa State Univ. (United States)

Published in SPIE Proceedings Vol. 9162:
Active Photonic Materials VI
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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