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Applied Optics

Applied Optics


  • Vol. 19, Iss. 2 — Jan. 15, 1980
  • pp: 207–214

Real-time high-resolvance image correlation by Bragg diffraction in saturable absorbers

B. Carquille and C. Froehly  »View Author Affiliations

Applied Optics, Vol. 19, Issue 2, pp. 207-214 (1980)

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Real-time image correlation is achieved by coupling coherent Fourier spectra inside saturable absorbers. Previously described optical correlators using nonlinear susceptibilities are strongly limited by the angular selectivity of Bragg diffraction in thick interaction cells. We overcame these difficulties by a special 3-D arrangement of the interfering beams. High-quality quasi-real-time holographic images, enabling cross-correlation of photographic transparencies free of detection noise, are demonstrated.

© 1980 Optical Society of America

Original Manuscript: June 23, 1979
Published: January 15, 1980

B. Carquille and C. Froehly, "Real-time high-resolvance image correlation by Bragg diffraction in saturable absorbers," Appl. Opt. 19, 207-214 (1980)

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