Abstract

Because of their light weight and general wave-front-transforming ability, holograms appear potentially useful as beam correctors and collimators for diode-laser arrays in intersatellite optical data links. However, to survive in space a hologram must withstand damage from electrons and protons trapped in the Van Allen belts. We have found that holograms made with Polaroid DMP128 photopolymer on Suprasil-2 can withstand 63-MeV protons up to a total dose of 2 Mrad (Si) and withstand ⁶⁰Co gamma rays up to a total dose of 2 Mrad (Si) without loss of diffraction efficiency. It appears that these holograms are sufficiently radiation hard for space application.

© 1988 Optical Society of America

Resistance of holograms made in dichromated gelatin emulsion to fission neutron damage

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