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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 67, Iss. 8 — Aug. 1, 1977
  • pp: 1015–1021

Principles of broad-band coherent imaging

N. H. Farhat  »View Author Affiliations

JOSA, Vol. 67, Issue 8, pp. 1015-1021 (1977)

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The combination of broad-band illumination and coherent (synchronous) detection techniques provides a means by which imaging systems can derive added object information and consequently enhance their resolution. In this paper a unified theory of coherent imaging or holography with broad-band illumination is developed in terms of the temporal impulse response, the spectral frequency response, and cross-correlation imaging with noise illumination of the object. The equivalence of these three methods is established and their resolution capabilities in the imaging of one- and two-dimensional nondispersive objects is determined. The resolution is shown to be dependent on bandwidth and geometry. The advantages of broad-band illumination over monochromatic illumination are also discussed.

© 1977 Optical Society of America

N. H. Farhat, "Principles of broad-band coherent imaging," J. Opt. Soc. Am. 67, 1015-1021 (1977)

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