Recording scheme in opposite directed beams for obtaining relief-phase holographic gratings working in transmission
Ganzherli N.M.
1, Gulyaev S.N.
2, Ilyushina D.A.
2, Maurer I.A.
11Ioffe Institute, St. Petersburg, Russia
2Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia
Email: nina.holo@mail.ioffe.ru, gulyaev@rphf.spbstu.ru, maureririna@yandex.ru
The article presents the results of experiments on recording thin transmission relief-phase gratings in counter-propagating beams. Holographic gratings with a spatial frequency of up to 800 mm-1 were produced on PFG-01 photographic material, the processing technology of which includes tanning bleaching in bleaches containing dichromates, UV irradiation and etching in solutions of glacial acetic acid in isopropyl alcohol. The key point in the processing technology is the destructive effect of short-wave UV radiation with a wavelength less than 270 nm on the gelatin of the photo emulsion. In the course of the experiments, transmission relief-phase holographic gratings were obtained. Keywords: holographic diffraction gratings, PFG-01 photographic plates, short-wave UV radiation, surface relief, diffraction efficiency, glacial acetic acid, isopropyl alcohol.
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