Beam shaping and manipulation in photonic crystal structures (presentation video)

Anna C. Tasolamprou; Lei Zhang; Maria Kafesaki; Thomas Koschny; Costas M. Soukoulis

doi:10.1117/12.2064169

17 August 2014 Beam shaping and manipulation in photonic crystal structures (presentation video)

Anna C. Tasolamprou, Lei Zhang, Maria Kafesaki, Thomas Koschny, Costas M. Soukoulis

Proceedings Volume 9162, Active Photonic Materials VI; 91620I (2014) https://doi.org/10.1117/12.2064169
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

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.

Citation Download Citation

Anna C. Tasolamprou, Lei Zhang, Maria Kafesaki, Thomas Koschny, and Costas M. Soukoulis "Beam shaping and manipulation in photonic crystal structures (presentation video)", Proc. SPIE 9162, Active Photonic Materials VI, 91620I (17 August 2014); https://doi.org/10.1117/12.2064169

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