Second and Third Harmonic Generation in Metal-Based Nanostructures

Abstract

We present a new theoretical approach to the study of second and third harmonic generation from metallic nanostructures and nanocavities filled with a nonlinear material, in the ultrashort pulse regime. We model the metal as a two-component medium, using the hydrodynamic model to describe free electrons, and Lorentz oscillators to account for core electron contributions to both the linear dielectric constant and to harmonic generation. The active nonlinear medium that may fill a metallic nanocavity or be positioned between metallic layers in a stack, is also modeled using Lorentz oscillators and surface phenomena due to symmetry breaking are taken into account. We study the effects of incident TE- and TM-polarized fields and show that a simple re-examination of the basic equations reveals additional, exploitable dynamical features of nonlinear frequency conversion in plasmonic nanostructures.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2010
Accession Number
ADA525670

Entities

People

  • D. De Ceglia
  • M. A. Vincenti
  • M. Centini
  • M. J. Bloemer
  • M. Scalora
  • N. Aközbek
  • V. Roppo

Organizations

  • United States Army Research, Development and Engineering Command

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Convection
  • Conversion
  • Dielectric Permittivity
  • Electron Gas
  • Electrons
  • Energy Bands
  • Equations
  • Free Electrons
  • Frequency
  • Frequency Conversion
  • Laser Pulses
  • Lorentz Force
  • Magnetic Fields
  • Materials
  • Nanostructures
  • Optical Properties
  • Third Harmonic Generation

Fields of Study

  • Physics

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Optical Physics and Photonics.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene