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Non-invasive determination of optical properties of scattering media

Published online by Cambridge University Press:  23 April 2010

Cuncheng Weng
Cuncheng Weng*
Affiliation:
Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education/School of Physics and OptoElectronics Technology Fujian Normal University, Fuzhou 350007, P.R. China
*
ccweng@fjnu.edu.cm
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Abstract

In this paper, the transportation principles of a sine-modulated spherical light coming from a point light source in an optically homogeneous scattering media are present for the first time to our knowledge. Both a focused ultrasound pulse and a broadened light beam are employed to produce the point light source emitting the sine-modulated light. Firstly, based on the transportation principles, the penetration depth of the media is deduced by moving the ultrasound beam and detecting the changes of the ultrasound-modulated light signal outside the media. Then, the diffuse reflection ratio of the media is deduced by measuring the reflected light outside the media. At last, with the combinations among the penetration depth, the diffuse reflection ratio and other optical properties, the optical properties of the media are determined by mathematic calculating.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 50 , Issue 3 , June 2010 , 31401
Copyright
© EDP Sciences, 2010

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