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Plasmonics

, Volume 13, Issue 6, pp 2061–2066 | Cite as

Analysis of the Optical Properties of Chiral Au Nanorod Stacks

  • Carolina de Dios
  • Hua Yu Feng
  • Fernando García
  • Alfonso Cebollada
  • Gaspar Armelles
Article
  • 164 Downloads

Abstract

We analyze the optical and chirooptical response of two Au nanorods vertically separated and with arbitrary relative in-plane orientation. The use of a simple model of Lorentzian oscillators assigned to the resonances of each individual rod allows analyzing the evolution of the optical properties of this 3D chiral system as a function of relative in-plane orientation, inter-rod separation, and rod dimensions. These results are compared with real physical structures fabricated by multiaxial thermal evaporation through nanohole masks. Despite the simplicity of the theoretical model, the obtained results reproduce the main experimental optical properties of the rod system.

Keywords

Chirality Plasmonics Optical activity Circular dichroism Gold nanostructures Nanorods 

Notes

Funding Information

We acknowledge the financial support from the Spanish MINECO through the project MAT 2014-58860-P. We acknowledge the service from the X-SEM Laboratory at IMM, and funding from MINECO under project CSIC13-4E-1794 with support from EU (FEDER, FSE). We acknowledge the service from MiNa Laboratory at IMM, and funding from CM under project S2013/ICE-2822 (Space-Tec) with support from EU (FEDER, FSE).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Carolina de Dios
    • 1
  • Hua Yu Feng
    • 1
  • Fernando García
    • 1
  • Alfonso Cebollada
    • 1
  • Gaspar Armelles
    • 1
  1. 1.IMN-Instituto de Micro y Nanotecnología de Madrid (CNM-CSIC)Isaac Newton 8, PTMMadridSpain

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