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Picosecond optical correlation using dynamic holography in polyacetylene

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Abstract

An image-processing system based on four-wave mixing in a film of polyacetylene less than 100 nm thick is demonstrated with a 1-ps processing cycle time. Image phase conjugation and cross correlation are performed with a resolution space–bandwidth product of 0.68 × 105 (equivalent to 261 × 261 pixels) in the phase-conjugate image. The light source was amplified optical pulses from a colliding-pulse mode-locked dye laser at a wavelength of 625 nm.

© 1993 Optical Society of America

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