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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 11 — Nov. 26, 2007

Fresnel-propagated submicrometer x-ray imaging of water-immersed tooth dentin

Simon Zabler, Peter Cloetens, and Paul Zaslansky  »View Author Affiliations

Optics Letters, Vol. 32, Issue 20, pp. 2987-2989 (2007)

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Structural investigations of materials in diverse fields such as biomimetics, materials engineering, and medicine have much to benefit from 3D nondestructive microscopy of representative samples of wet tissues. Phase contrast appearing in tomograms produced by Fresnel propagation of partially coherent x-ray fields is useful for visualizing submicrometer features within water-immersed samples. However, spurious contributions such as those due to randomly appearing bubbles lead to distorted images. By improving the statistics during image acquisition and reconstruction, submicrometer-sized tubules in human tooth dentin are observed. This type of wet imaging is directly applicable to the study of many mineralized tissues.

© 2007 Optical Society of America

OCIS Codes
(110.7440) Imaging systems : X-ray imaging
(170.1850) Medical optics and biotechnology : Dentistry
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.6960) Medical optics and biotechnology : Tomography
(340.6720) X-ray optics : Synchrotron radiation

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: June 25, 2007
Revised Manuscript: August 16, 2007
Manuscript Accepted: August 29, 2007
Published: October 8, 2007

Virtual Issues
Vol. 2, Iss. 11 Virtual Journal for Biomedical Optics

Simon Zabler, Peter Cloetens, and Paul Zaslansky, "Fresnel-propagated submicrometer x-ray imaging of water-immersed tooth dentin," Opt. Lett. 32, 2987-2989 (2007)

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