Development and Operation of a Hemi-Ellipsoidal Mirror Infrared Reflectometer from 2 to 34 micrometers
Abstract
The development and testing of an infrared hemi-ellipsoidal mirror reflectometer (HEMR) operational over a wavelength interval from 2 to 34 micrometers is described. This optical system measures the hemispherical- directional reflectance of room temperature samples relative to a specular, gold-coated surface. It is shown theoretically that for infinitesimal source and sample areas the HEMR measures the hemispherical-directional reflectance. Further, for a source and sample area commensurate with energy requirements, it is shown experimentally that the HEMR is functional, with very tolerable errors. Several associated problem areas investigated are described in detail. The hemispherical-directional reflectance of test samples (e.g., black paints, gold diffuser, sulfur, cesium iodide, and others) is presented for wavelengths from 2 to 34 micrometers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1975
- Accession Number
- ADA012878
Entities
People
- A. Matthew Smith
- Bobby E. Wood
- J. A. Roux
- J. G. Pipes
Organizations
- Arnold Engineering Development Complex