Accession Number:

ADA160145

Title:

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

Descriptive Note:

Technical rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Report Date:

1985-10-01

Pagination or Media Count:

22.0

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 580cm and subsurface 890cm Al-O stretching modes at sub-monolayer coverage. Author

Subject Categories:

  • Lasers and Masers
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE