Accession Number:

ADD015796

Title:

Method and Apparatus for Performing Scanning Tunneling Optical Absorption Spectroscopy.

Descriptive Note:

Patent, filed 20 Dec 91, patented 30 Mar 93,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1993-03-30

Pagination or Media Count:

7.0

Abstract:

An apparatus for performing scanning tunneling optical absorption spectroscopy includes a scanning tunneling microscope tip positioned at a tunneling distance over a surface portion of a sample to be analyzed, biasing apparatus for producing in electric potential between said scanning tunneling microscope tip and said surface portion sufficient to cause a tunneling current to flow between said scanning tunneling microscope tip and said surface portion, illumination apparatus for illuminating said surface portion with modulated monochromatic light, and a detector for detecting an AC component of the tunneling current resulting from the modulated monochromatic light.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy
  • Optics
  • Electrical and Electronic Equipment
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE