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Proceedings Paper

Autocorrelation imaging of 3D structures using a femtosecond laser: application to imaging of sandstone
Author(s): Ping Yu; M. Mustata; William Robert Headley; L. J. Pyrak-Nolte; David D. Nolte; Paul M. W. French
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Paper Abstract

Optical coherence imaging (OCI) is an autocorrelation imaging technique that uses short-coherence light and holographic recording and reconstruction to perform laser-ranging into translucent media. OCI is a full-frame variant of OCT and shares excellent discrimination against scattered light from heterogeneous media. We present the first use of OCI to image into a heterogeneous translucent media: sandstone. There are two motivations for studying sandstone. First, it is an excellent example of a heterogeneous translucent medium on which to study the effects of holographic reconstruction in the presence of static scattered speckle. Second, it is of intrinsic interest for energy production as an excellent example of an oil or gas reservoir rock. Using Optical Coherence Imaging (OCI) we have imaged several layers of grains in a sandstone sample. Information on grain geometry was obtained as deep as 400 microns into the sample.

Paper Details

Date Published: 11 June 2002
PDF: 8 pages
Proc. SPIE 4643, Ultrafast Phenomena in Semiconductors VI, (11 June 2002); doi: 10.1117/12.470423
Show Author Affiliations
Ping Yu, Purdue Univ. (United States)
M. Mustata, Purdue Univ. (United States)
William Robert Headley, Purdue Univ. (United States)
L. J. Pyrak-Nolte, Purdue Univ. (United States)
David D. Nolte, Purdue Univ. (United States)
Paul M. W. French, Imperial College of Science, Technology, and Medicine (United Kingdom)

Published in SPIE Proceedings Vol. 4643:
Ultrafast Phenomena in Semiconductors VI
Kong-Thon F. Tsen; Jin-Joo Song; Hongxing Jiang, Editor(s)

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