Accession Number:

AD0601646

Title:

REFLECTOMETER FOR DETERMINING OPTICAL CONSTANTS.

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB CORONA CALIF

Personal Author(s):

• Potter,R. F.

Report Date:

1964-05-15

Pagination or Media Count:

19.0

Abstract:

This report describes a reflectometer that uses linearly polarized incident radiation and permits the measurement of the ratio R polarized parallelperpendicular as a function of the angle of incidence, including the minimum ratio corresponding to the pseudo Brewster angle. Special features are 1 the source and detector are mounted in fixed positions and 2 the reflectometer can be mounted in a cryogenic apparatus. It is shown that the resulting data can be reduced to give with precision the pseudo Brewster angle phi sub B or the quantity sq X sub B sq sin phi sub B sq tan phi sub B, as well as the minimum value of R at phi sub B R sub B. With these two parameters, the optical constants can be determined in an analytical manner for a specular sample that can be characterized as having a complex dielectric constant epsilon epsilon sub 1 i epsilon sub 2. Author

Descriptors:

• *REFLECTOMETERS
• OPTICS
• POLARIZATION
• LIGHT
• SOURCES
• DETECTORS
• GALLIUM COMPOUNDS
• ANTIMONY COMPOUNDS
• OPTICAL PROPERTIES
• MEASUREMENT
• EQUATIONS
• GRAPHICS
• OPTICAL INSTRUMENTS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE