Plasmonics

, Volume 13, Issue 2, pp 419–425 | Cite as

Properties of Surface Plasmon Polaritons Excited by Radially Polarized Sinh Gaussian Beams

  • R. Murugesan
  • N. Pasupathy
  • M. Udhayakumar
  • K. B. Rajesh
  • Z. Jaroszewicz
Article
  • 154 Downloads

Abstract

Properties of surface plasmon polaritons (SPPs) excited by radially polarized sinh Gaussian beams with high-numerical-aperture system is investigated theoretically based on vector diffraction theory. It is observed that by properly tuning the beam waist size (w 0 ) and beam order (m) of the incident sinh Gaussian beam, one can achieve higher confinement in axial and lateral size of the generated plasmonic focal spot. We observed that sinh Gaussian beam of larger w 0 and m results in generation of highly confined plasmonic focal spot.

Keywords

Surface plasmon Radially polarized laser Sinh gaussian beam 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • R. Murugesan
    • 1
  • N. Pasupathy
    • 1
  • M. Udhayakumar
    • 2
  • K. B. Rajesh
    • 2
  • Z. Jaroszewicz
    • 3
  1. 1.Department of ElectronicsErode Arts and Science CollegeErodeIndia
  2. 2.Department of PhysicsChikkana Government Arts CollegeTiruppurIndia
  3. 3.Department of Physical OpticsInstitute of Applied Optics, National Institute of TelecommunicationsWarsawPoland

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