Accession Number:

ADA112220

Title:

Retroreflective Phase Retardation Prisms.

Descriptive Note:

Technical rept.,

Corporate Author:

ELECTRONICS RESEARCH LAB ADELAIDE (AUSTRALIA)

Personal Author(s):

• Venning,J. R.

Report Date:

1981-06-01

Pagination or Media Count:

48.0

Abstract:

A retroreflecting device with controlled phase retardation can be made by coating each reflecting surface of a porro prism with a single dielectric film. The amount of phase retardation is a function of the refractive index of the prism, the refractive index of the film and the film thickness. The retardation introduced can be readily controlled in the range of zero to pi radians using readily available materials. The materials used are not birefringent. Two phase retardation prisms have been made and evaluated. Author

Descriptors:

• *Retroreflectors
• *Prisms(Optics)
• Dielectric films
• Optical coatings
• Phase shift
• Delay
• Polarization
• Wavefronts
• Electrooptics
• Magnesium compounds
• Fluorides
• Refractive index
• Angle of arrival
• Australia

Subject Categories:

• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE