Review Special Topic Plasmonics

Chinese Science Bulletin

, Volume 55, Issue 24, pp 2608-2617

Solving surface plasmon resonances and near field in metallic nanostructures: Green’s matrix method and its applications

  • Ying GuAffiliated withState Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University
  • , Jia LiAffiliated withState Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University
  • , Olivier J. F. MartinAffiliated withNanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology Lausanne (EPFL)
  • , QiHuang GongAffiliated withState Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University Email author 

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Abstract

With the development of nanotechnology, many new optical phenomena in nanoscale have been demonstrated. Through the coupling of optical waves and collective oscillations of free electrons in metallic nanostructures, surface plasmon polaritons can be excited accompanying a strong near field enhancement that decays in a subwavelength scale, which have potential applications in the surface-enhanced Raman scattering, biosensor, optical communication, solar cells, and nonlinear optical frequency mixing. In the present article, we review the Green’s matrix method for solving the surface plasmon resonances and near field in arbitrarily shaped nanostructures and in binary metallic nanostructures. Using this method, we design the plasmonic nanostructures whose resonances are tunable from the visible to near-infrared, study the interplay of plasmon resonances, and propose a new way to control plasmonic resonances in binary metallic nanostructures.

Keywords

nanooptics surface plasmon resonance near field metallic nanostructure