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- W1978721889 abstract "Several acoustooptic devices have been developed for use as electronic signal processors at the Harry Diamond Laboratories. These devices use the Bragg interaction between a coherent light beam and surface acoustic waves propagating in a transparent crystalline delay line. Both real-time convolution and correlation of signals have been performed, and a real-time continuous Fourier transform has also been achieved. A programmable memory correlator has been demonstrated. This device uses a newly discovered photorefractive effect to store an image of a surface acoustic wave in a lithium niobate delay line. An acoustooptic implementation of the triple-product convolver is under active development. This device has been proposed for use in conjunction with charge-coupled-device chirp-Z-transform modules to perform very long discrete Fourier transforms and to do ω-k beam forming." @default.
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- W1978721889 date "1979-08-15" @default.
- W1978721889 modified "2023-10-02" @default.
- W1978721889 title "Surface wave delay line acoustooptic devices for signal processing" @default.
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- W1978721889 doi "https://doi.org/10.1364/ao.18.002767" @default.
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