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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

Low-diffraction beaming in plasmonic crystals

Sandeep Inampudi, Igor I. Smolyaninov, and Viktor A. Podolskiy  »View Author Affiliations

Optics Letters, Vol. 37, Issue 14, pp. 2976-2978 (2012)

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We analyze the propagation of electromagnetic modes guided by periodic plasmonic structures. We use full-wave solutions of Maxwell equations to calculate dispersion of these modes and derive analytical description of their optical properties. Finally, we demonstrate that, at a certain frequency range that can be controlled by the geometry, diffraction of these guided states is strongly suppressed, leading to formation of low-diffraction beams. A beaming phenomenon, consistent with earlier experiments, can be used as the foundation for on-chip communication or microscopy.

© 2012 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(050.1755) Diffraction and gratings : Computational electromagnetic methods
(160.3918) Materials : Metamaterials

ToC Category:
Optics at Surfaces

Original Manuscript: April 10, 2012
Revised Manuscript: May 24, 2012
Manuscript Accepted: May 25, 2012
Published: July 13, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Sandeep Inampudi, Igor I. Smolyaninov, and Viktor A. Podolskiy, "Low-diffraction beaming in plasmonic crystals," Opt. Lett. 37, 2976-2978 (2012)

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