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Optics Letters

Optics Letters


  • Vol. 30, Iss. 4 — Feb. 15, 2005
  • pp: 379–381

X-ray phase-attenuation duality and phase retrieval

Xizeng Wu, Hong Liu, and Aimin Yan  »View Author Affiliations

Optics Letters, Vol. 30, Issue 4, pp. 379-381 (2005)

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Phase retrieval is the key to quantitative x-ray phase-contrast imaging. To retrieve the phase image of an x-ray wave field, in general one needs multiple phase-contrast images. We have made a new observation of phase-attenuation duality for soft tissues, and we show how only a single phase-contrast image is needed for successful phase retrieval based on this duality. The phase-retrieval formula based on a single phase-contrast image of inhomogeneous soft tissue is derived and presented. We show the striking enhancement of the tissue contrast in simulated phase images that this new approach produces.

© 2005 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(340.7440) X-ray optics : X-ray imaging

Xizeng Wu, Hong Liu, and Aimin Yan, "X-ray phase-attenuation duality and phase retrieval," Opt. Lett. 30, 379-381 (2005)

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