Accession Number:

ADA149080

Title:

Pulsed Photothermal Radiometry for Remote Sensing of Spectroscopic and Physical Properties of Thin Film

Descriptive Note:

Technical rept.

Corporate Author:

IBM RESEARCH LAB SAN JOSE CA

Personal Author(s):

Report Date:

1984-12-18

Pagination or Media Count:

15.0

Abstract:

Photothermal Radiometry PTR is a sensitive technique for noncontact spectroscopy and inspection a modulated beam of photons or other particles is used to produce temperature transients, and the corresponding transients in the infrared thermal radiation emitted form the sample are analyzed. This paper describes the recent experimental and theoretical developments of pulsed PTR PPTR with back-scattering detection. PPTR is useful for many types of noncontact measurements, including absolute absorption spectroscopy, excitation spectroscopy, and the monitoring of thickness layered structure, thermal contacts, and associated properties. Further more, these measurements can be made on difficult samples like opaque materials, powders, aerosols, gels, skin in-vivo, and so on.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE