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- Title
Characteristics of Fourier Phase Holograms Recorded on Photopolymers.
- Authors
Ezhov, P. V.; Smirnova, T. N.; Tikhonov, E. A.
- Abstract
The results of the investigation of recording Fourier phase holograms on a self-developing photopolymer photosensitive in the range λ = 400-515 nm are presented. It has been found that, due to the transient energy transfer between the beams, noise gratings are recorded, and a corresponding sharp reduction in the signal-to-noise ratio occurs, while the diffraction efficiency of the hologram as a whole remains relatively high (above 50%). It has been found that the noise-grating recording can be substantially suppressed by increasing the intensity of the reference beam relative to the intensity of the object beam. In this way, the signal-to-noise ratio has been considerably improved for Fourier holograms of binary phase masks: at a reference to object beam intensity ratio R = 26, Fourier phase holograms are recorded with a diffraction efficiency η = 15% and signal-to-noise ratio N = 20 dB.
- Subjects
FOURIER analysis; PHOTOPOLYMERS
- Publication
Technical Physics, 2000, Vol 45, Issue 6, p743
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/1.1259713