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Opt Lett. 2005 May 15;30(10):1159-61.

Ball lens coupled fiber-optic probe for depth-resolved spectroscopy of epithelial tissue.

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1
Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, C0800, Austin, Texas 78712, USA.

Abstract

A ball lens coupled fiber-optic probe design is described for depth-resolved measurements of the fluorescence and reflectance properties of epithelial tissue. A reflectance target, fluorescence targets, and a two-layer tissue phantom consisting of fluorescent microspheres suspended in collagen are used to characterize the performance of the probe. Localization of the signal to within 300 microm of the probe tip is observed by use of reflectance and fluorescence targets in air. Differential enhancement of the fluorescence signal from the top layer of the two-layer tissue phantom is observed.

PMID:
15945140
PMCID:
PMC2773162
[Indexed for MEDLINE]
Free PMC Article
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