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Journal of Biomedical Optics

Simultaneous refractive index and thickness measurements of bio-tissue by optical coherence tomography
Author(s): Xinyu Wang; Chunping Zhang; Lianshun Zhang; Lingling Xue; Jian-guo Tian
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Paper Abstract

This paper presents two techniques based on optical coherence tomography, the "focus tracking method" and the "optical path shifting method," for determining refractive index and thickness simultaneously, which are especially useful for bio tissues. From comparison of these two methods, it was found that the focus tracking method is suitable for in vivo measurement, but does not have high precision. The optical path shifting method is limited to in vitro measurement, but has high precision. Using the optical path shifting method, the refractive indices of cucumber were measured at the wavelength of 850 and 1300 nm.

Paper Details

Date Published: 1 October 2002
PDF: 5 pages
J. Biomed. Opt. 7(4) doi: 10.1117/1.1501887
Published in: Journal of Biomedical Optics Volume 7, Issue 4
Show Author Affiliations
Xinyu Wang, Nankai Univ. (China)
Chunping Zhang, Nankai Univ. (China)
Lianshun Zhang, Nankai Univ. (China)
Lingling Xue, Nankai Univ. (China)
Jian-guo Tian, Nankai Univ. (China)


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