Analysis of infrared emission from thin adsorbatesFuel and lubricant deposits on solid surfaces, though often of similar visual appearance, differ in composition, depending on the nature of the deposit formers and the circumstances of deposition. To help establish these relations an Infrared Emission Fourier Polarization Microspectrophotometer was constructed to record infrared spectra from the deposits on their original support. By focussing on small aggregates with a reflecting microscope objective and by discriminating against the randomly polarized blackbody radiation with a rotating polarizing filter phase-locked to an amplifier, excellent Fourier emission spectra of polarized bands could be obtained. In many instances, the microscope objective was adequate without the polarizer. The analysis was calibrated against a very thin film of polyethylene terephthalate attached to a highly reflective aluminum mirror on the sample positioner.
Document ID
19820037896
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Lauer, J. L. (Rensselaer Polytechnic Inst. Troy, NY, United States)
Keller, L. E. (Rensselaer Polytechnic Institute, Troy, NY, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Inorganic And Physical Chemistry
Meeting Information
Meeting: In: International Conference on Fourier Transform Infrared Spectroscopy