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

G. V.Pavan Kumar, Danveer Singh, Partha Pratim Patra, Arindam Dasgupta

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

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.

Original languageEnglish
Pages (from-to)59-70
Number of pages12
JournalPramana - Journal of Physics
Volume82
Issue number1
DOIs
StatePublished - Jan 2014
Externally publishedYes

Keywords

  • Microscopy
  • Nanophotonics
  • Plasmons
  • Surface-enhanced Raman scattering

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