Surface Infrared Reflection-Absorption Spectroscopy Using a Tunable Diode Laser.

Abstract

Single-reflection infrared reflection-absorption spectra (IRRAS) of adsorbates on surfaces have been obtained using a tunable diode laser radiation source. Surface sensitivity is achieved through the use of polarization modulation, and the high brightness of the laser light source has made possible the observation of vibrational modes at energies much lower than those accessible with conventional blackbody sources. Results are presented for the chemisorption of oxygen on polycrystalline aluminum showing surface (580/cm) and subsurface (890/cm) Al-O stretching modes at sub-monolayer coverage. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1985
Accession Number
ADA160145

Entities

People

  • J. E. Butler
  • J. L. Hylden
  • Victor M. Bermudez

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Computers
  • Detectors
  • Electrons
  • Frequency
  • Laser Diodes
  • Lasers
  • Light Sources
  • Measurement
  • Signal Processing
  • Spectra
  • Spectroscopy
  • Surface Chemistry
  • Surface Properties
  • Vibration
  • Vibrational Spectra
  • Waveforms

Fields of Study

  • Physics

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers