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Proceedings Paper

Measurement of the refractive index of biotissue at four laser wavelengths
Author(s): Shuying Cheng; Hong Yuan Shen; G. Zhang; Cheng Hui Huang; X. J. Huang
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Paper Abstract

Based on the principle of total internal reflection, a new experimental system , in which the sample is close sandwiched between two prisms, was designed to determine the refractive indices of biotissues and homogeneous medium. Some mammalian tissues have been determined at laser wavelengths ofO.488, 0.6328, 1.0795 and 1.3414?tm, respectively, and their dispersion equations have been obtained. And the absolute error between the n calculated from the dispersion equation and the measured is within 0.002. By utilizing these dispersion equations, the refractive indices of the tissues can be obtained at any wavelength within the waveband of O.488-1.3414?m. The method has great reliability and accuracy, and it can be used for measuring the refractive indices of biotissues and any other medium.

Paper Details

Date Published: 12 September 2002
PDF: 5 pages
Proc. SPIE 4916, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment, (12 September 2002); doi: 10.1117/12.482969
Show Author Affiliations
Shuying Cheng, Fujian Institute of Research on the Structure of Matter and Fuzhou Univ. (China)
Hong Yuan Shen, Fujian Institute of Research on the Structure of Matter (China)
G. Zhang, Fujian Institute of Research on the Structure of Matter (China)
Cheng Hui Huang, Fujian Institute of Research on the Structure of Matter (China)
X. J. Huang, Fujian Institute of Research on the Structure of Matter (China)


Published in SPIE Proceedings Vol. 4916:
Optics in Health Care and Biomedical Optics: Diagnostics and Treatment
Britton Chance; Mingzhe Chen; Gilwon Yoon, Editor(s)

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