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- Xu, E. Y, et al.
(författare)
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Nanosecond image processing using stimulated photon echoes
- 1990
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Ingår i: Optics Letters. - 0146-9592. ; 15:10, s. 562-564
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Tidskriftsartikel (refereegranskat)abstract
- Processing of two-dimensional images on a nanosecond time scale is demonstrated using the stimulated photon echoes in a rare-earth-doped crystal (0.1 at. \% Pr3$+$:LaF3). Two spatially encoded laser pulses (pictures) resonant with the 3P0-3H4 transition of Pr3$+$ were stored by focusing the image pulses sequentially into the Pr3$+$:LaF3 crystal. The stored information is retrieved and processed by a third read pulse, generating the echo that is the spatial convolution or correlation of the input images. Application of this scheme to high-speed pattern recognition is discussed.
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