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Optical Properties of Metal Nanorods

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Part of the NanoScience and Technology book series (NANO)

Abstract

This chapter deals with the optical properties of elongated metallic nanoparticles. Metal nanostructures in general interact strongly with the electromagnetic radiation. This interaction can cause the collective excitation of free carriers, leading to the so-called localized surface plasmon resonances, but also induce electronic transitions of bound electrons from occupied to empty bands, and additionally scattering, as free carriers in the nanostructure are accelerated and start radiating. We will analyze both the far field and the near field behavior of metal nanoparticles, and how this is influenced by the nanoparticle size and especially by its shape. Our focus will be clearly on rods and wires and we will highlight both experimental and theoretical/computational approaches. The chapter will additionally touch aspects related to ultrafast electron dynamics in these systems and will give a brief overview on applications, such as metal enhanced fluorescence and surface enhanced Raman scattering.

Keywords

Gold Nanoparticles Surface Enhance Raman Scattering Dielectric Function Field Enhancement Interband Transition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.NanostructuresIstituto Italiano di TecnologiaGenovaItaly
  2. 2.NanochemistryIstituto Italiano di TecnologiaGenovaItaly
  3. 3.National Nanotechnology Laboratory (NNL)Nanoscience Institute of CNRLecceItaly
  4. 4.Departament de Química Inorgànica—Institut de Nanociència i Nanotecnologia (IN2UB)Universitat de BarcelonaBarcelonaSpain
  5. 5.Department of ChemistryUniversity of DelhiDelhiIndia

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