Characteristics of photopolymer holographic matched filters in a van der Lugt correlator |
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Authors: | P V Ezhov T N Smirnova E O Tikhonov |
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Institution: | (1) Institute of Physics, National Academy of Sciences of Ukraine, pr. Nauki 144, Kiev, 252650, Ukraine |
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Abstract: | Parameters of van der Lugt holographic matched filters for phase and amplitude transparencies, including random phase masks, are studied. Conditions for recording such filters in a phase self-developing photopolymer are determined. A significant difference in the recording conditions for the holographic filters for amplitude transparencies and phase masks is demonstrated. The holographic filters for phase masks with a signal-to-noise ratio of 20–40 dB and η from 6 to 70% that are recorded in the photopolymerizable composition seem to be promising for optical pattern recognition. |
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