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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 14, Iss. 8 — Aug. 1, 1997
  • pp: 1867–1871

Time-gated transillumination and reflection by biological tissues and tissuelike phantoms: simulation versus experiment

K. Michielsen, H. De Raedt, and N. Garcı́a  »View Author Affiliations


JOSA A, Vol. 14, Issue 8, pp. 1867-1871 (1997)
http://dx.doi.org/10.1364/JOSAA.14.001867


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Abstract

A numerical method is presented to solve exactly the time-dependent diffusion equation that describes light transport in turbid media. The simulation takes into account spatial variations of the scattering and absorption factors of the medium and the objects as well as random fluctuations of these quantities. The technique is employed to explore the possibility of locating millimeter-sized objects immersed in turbid media from time-gated measurements of the transmitted or reflected (near-infrared) light. The simulation results for tissuelike phantoms are compared with experimental transillumination data, and excellent agreement is found. Simulations of time-gated reflection experiments indicate that it may be possible to detect objects of 1-mm radius.

© 1997 Optical Society of America

History
Original Manuscript: November 12, 1996
Manuscript Accepted: January 27, 1997
Published: August 1, 1997

Citation
K. Michielsen, H. De Raedt, and N. Garcı́a, "Time-gated transillumination and reflection by biological tissues and tissuelike phantoms: simulation versus experiment," J. Opt. Soc. Am. A 14, 1867-1871 (1997)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-14-8-1867

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