The Potential Dependence of Surface Plasmon-Enhanced Second Harmonic Generation at Thin Film Silver Electrodes.

Abstract

The intensity of second harmonic light generated from plasmon surface polaritons at thin film silver electrodes in contact with an aqueous electrolyte exhibits a strong dependence on electrode potential for a variety of electrochemical systems. The surface plasmons enhance the electromagnetic field at the surface, thereby greatly increasing the second harmonic intensity at the interface. We have measured the potential dependence of surface plasmon-enhanced second harmonic generation at a silver electrode for aqueous solutions of sodium perchlorate, sodium thiocyanate, urea (a strong adsorbate), and for a buffered solution of lead acetate in the underpotential deposition region where a monolayer of lead is deposited onto the silver. The results can be interpreted by a simple theory relating the second harmonic signal to the static electric field at the surface; to the first order this field is proportional to the excess charge density on the metal. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1983
Accession Number
ADA138322

Entities

People

  • M. D. Levenson
  • M. R. Philpott
  • M. Romagnoli
  • R. M. Corn

Organizations

  • International Business Machines Corporation (Armonk, NY)

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Charge Density
  • Electric Fields
  • Electrochemical Cells
  • Electrodes
  • Electromagnetic Fields
  • Films
  • Military Research
  • Physics
  • Plasmons
  • Polaritons
  • Quantum Mechanics
  • Resonance
  • Second Harmonic Generation
  • Security
  • Surface Plasmon Polaritons
  • Surface Plasmons
  • Thin Films

Fields of Study

  • Physics

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology