Registration of high-frequency relief-phase structures on silver halide photographic material PFG-01

Abstract

A new variant of manufacturing high-frequency holographic gratings with a spatial frequency up to 1200 mm-1 on silver halide photographic material for holography PFG-01 is proposed, the processing technology of which is tanning bleaching in bleach containing dichromates and etching in water or in solutions of glacial acetic acid in isopropyl alcohol. The key point is the destructive effect on gelatin of short-wave UV radiation with a wavelength of less than 270 nm. During the experiments, relief-phase holographic gratings with high diffraction efficiency up to a value of 42% were obtained. Keywords: holographic diffraction gratings, silver halide photoemulsions, PFG-01 photographic plates, short-wave UV radiation, surface relief, diffraction efficiency, glacial acetic acid, isopropyl alcohol.