Polarization Holograms.
Abstract
The patent application discloses a holographic system using object and reference beams that are linearly polarized in different directions with the interference pattern resulting from their interaction being maintained in the condition of orientable molecules or centers which constitute the recording medium. An object is to provide apparatus for forming a polarization hologram, which will allow the image light to be polarized differently from the incident or transmitted readout beam, or any parasitic light which might be present on the observer's side of the hologram in order to prevent incoherently scattered light from the analyzing beam from reaching the observer. Another object is to provide a recording medium for a polarization hologram system wherein image information is maintained in the condition of a dichroic or birefringent material which may be sensitive to the polarization state of illuminated light energy depending upon the choice of recording medium material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 07, 1976
- Accession Number
- ADD003167
Entities
People
- Roger M. Herman
Organizations
- United States Department of the Navy