Construction and Analysis of a PRIZ Spatial Light Modulator Exhibiting Dynamic Image Selection.
Abstract
A PRIZ electrooptic spatial light modulator exhibiting dynamic image selection (current-conducting PRIZ) was constructed, demonstrated, and analyzed. The current-conducting PRIZ was constructed by vacuum depositing transparent chromium electrodes on the large faces (1 sq cm) of a thin (0.5mm) slice of (111) cut Bismuth Silicon Oxide (Bi12SiO20 or BSO). Dynamic image selection was demonstrated by writing a moving image into the device with an Argon ion laser and observing the image reproduced by a circularly polarized HeNe laser readout beam. This experiment verifies the dynamic image selection effect with a device constructed outside of the Soviet Union, an accomplishment not previously reported. The BSO material was analyzed and found to exhibit optical activity and refractive index values similar to other American grown material. The conductivity and absorption coefficients differed significantly from the published results, being higher and lower, respectively. The experimental device exhibits directional filtering in agreement with published theory and also exhibits optical memory times of up to 20 minutes. Originator supplied keywords include: PRIZ, BSO, Dynamic image selection, Directional filtering, Spatial light modulator.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA152318
Entities
People
- D. M. Shields
Organizations
- Air Force Institute of Technology