Study and Development of Polymeric Photorefractive Materials.
Abstract
The research program summarized here involved the development of new organic photorefractive polymers, improvements of our understanding of the fundamental phenomena that govern photo refractivity in these polymer systems and an optimization of the material's properties for practical device applications. Of particular emphasis were systems that might be of use as optical limiters in eye and sensor protection devices. At the time that the work supported under this Contract began, photorefractive polymers had just been discovered at IBM's Almaden Research Center. The first polymer system discovered was slow and its steady state diffraction efficiency was small. It was no match for the inorganic crystalline photorefractive materials that had been under investigation for over 20 years at that time. Substantial progress has been made and as a result of this ARPA (ARMY) supported work, photorefractive polymers are now equal in speed and efficiency to some of the best inorganic crystalline systems. Improvements continue to be made both by our group at IBM and by others and there is reason to expect that in the near future the polymeric systems will surpass the inorganic crystals in their photorefractive polymers. jg p1
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 27, 1995
- Accession Number
- ADA302168
Entities
People
- Donald M. Burland
Organizations
- International Business Machines Corporation (Armonk, NY)