Accession Number : AD0772830

Title :   Materials for Holographic Optical Elements.

Descriptive Note : Final technical rept. 1 Nov 72-30 Jun 73,


Personal Author(s) : Colburn,W. S. ; Dwyer,J. C. ; Ralston,L. M.

Report Date : NOV 1973

Pagination or Media Count : 88

Abstract : The objective of this program was the development of an infrared sensitive recording material suitable for holographic optical elements applications. The major efforts were directed to the IR sensitization of photoplastic materials and the development of an IR sensitive photodegradable material. A theoretical analysis for the spectral sensitization of PVK was developed to further our understanding of the sensitization mechanism and as an aid to estimating the efficiency of particular sensitizers. A number of materials were evaluated in an experimental survey of candidate sensitizers. Several sensitizers were identified that, in complex with polyvinylcarbozole (PVK) formed photoconductors sensitive to 1.15 micrometer radiation. These sensitizers include chloranil, tetranitrofluorenone, and an Eastman Q-Switch dye. Holograms were recorded at a wavelength of 1.15 micrometer with exposure sensitivities as low as 40 (m to the J power)/sq cm. Suitable sensitizers were also identified for use in photodegradable materials. (Modified author abstract)

Descriptors :   *Holography, *Photographic materials, Photosensitivity, Near infrared radiation, Sensitizing, Photoconductors, Thermoplastic resins, Holograms

Subject Categories : Holography

Distribution Statement : APPROVED FOR PUBLIC RELEASE