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Pramana

, Volume 82, Issue 1, pp 59–70 | Cite as

Subwavelength propagation and localization of light using surface plasmons: A brief perspective

  • G V PAVAN KUMAREmail author
  • DANVEER SINGH
  • PARTHA PRATIM PATRA
  • ARINDAM DASGUPTA
Article

Abstract

Surface plasmons at the metal–dielectric interface have emerged as an important candidate to propagate and localize light at subwavelength scales. By tailoring the geometry and arrangement of metallic nanoarchitectures, propagating and localized surface plasmons can be obtained. In this brief perspective, we discuss: (1) how surface plasmon polaritons (SPPs) and localized surface plasmons (LSPs) can be optically excited in metallic nanoarchitectures by employing a variety of optical microscopy methods; (2) how SPPs and LSPs in plasmonic nanowires can be utilized for subwavelength polarization optics and single-molecule surface-enhanced Raman scattering (SERS) on a photonic chip; and (3) how individual plasmonic nanowire can be optically manipulated using optical trapping methods.

Keywords

Plasmons surface-enhanced Raman scattering microscopy nanophotonics 

PACS Nos

73.20.Mf 78.30.−j 68.37.−d 78.68.+m 

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Copyright information

© Indian Academy of Sciences 2014

Authors and Affiliations

  • G V PAVAN KUMAR
    • 1
    Email author
  • DANVEER SINGH
    • 1
  • PARTHA PRATIM PATRA
    • 1
  • ARINDAM DASGUPTA
    • 1
  1. 1.Photonics and Optical Nanoscopy Laboratory, Departments of Physics and ChemistryIndian Institute of Science Education and ResearchPuneIndia

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