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Proceedings Paper

Scanning fiber system for angle-resolved low coherence interferometry
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Paper Abstract

We propose a fiber-optic system for Fourier-domain angle-resolved low coherence interferometry. The system is based on singlemode fiber couplers and employs a scanning fiber to collect the angular scattering distribution of the sample. The measured distribution is then fitted to Mie theory to estimate the size of the scatterers. Depth resolution is achieved with Fourier-domain low coherence Mach-Zehnder interferometry. The sample arm of the interferometer illuminates the specimen with polarized light and collects back-scattered light from the sample. The probe's optical performance is evaluated and its depth-resolved sizing capability is demonstrated with subwavelength accuracy using a two-layer microsphere phantom.

Paper Details

Date Published: 26 February 2010
PDF: 4 pages
Proc. SPIE 7573, Biomedical Applications of Light Scattering IV, 75730J (26 February 2010); doi: 10.1117/12.842093
Show Author Affiliations
Yizheng Zhu, Duke Univ. (United States)
Neil G. Terry, Duke Univ. (United States)
Michael G. Giacomelli, Duke Univ. (United States)
Adam Wax, Duke Univ. (United States)

Published in SPIE Proceedings Vol. 7573:
Biomedical Applications of Light Scattering IV
Adam P. Wax; Vadim Backman, Editor(s)

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