Accession Number:

AD0720802

Title:

Super- and Sub-Specular Maxima in the Angular Distribution of Polarized Radiation Reflected from Roughened Dielectric Surfaces

Descriptive Note:

Final rept. May 1969-Apr 1970

Corporate Author:

ARO INC ARNOLD AFS TN

Personal Author(s):

Report Date:

1971-03-01

Pagination or Media Count:

33.0

Abstract:

To study the effects of surface roughness on the reflection of radiation from the vacuum-deposit interface of CO2 cryodeposits, detailed angular distribution measurements were made of the polarized radiant flux reflected from roughened glass samples which had similar optical properties to CO2 cryodeposits. As a result of these measurements, a new type of off-specular peak was discovered. A formula is derived for the radiation reflected in the plane of incidence and is used to quantitatively confirm the existence of the super- and sub-specular maxima for moderate incidence angles. The super- and sub-specular maxima phenomena have potential application to making in situ measurements of surface roughness characteristics.

Subject Categories:

  • Physical Chemistry
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE