Path length resolved Doppler measurements of multiple scattered photons in turbid media for various absorptions using phase modulated low-coherence interferometry

被引：1
|
作者：
Varghese, Babu [1 ,2 ]
Rajan, Vinayakrishnan [1 ,2 ]
Van Leeuwen, Ton G. [1 ,2 ]
Steenbergen, Wiendelt [1 ,2 ]
机构：
[1] Univ Twente, Biomed Technol Inst, Biophys Engn Grp, POB 217, NL-7500 AE Enschede, Netherlands
[2] Acad Med Ctr, Laser Ctr, NL-1105 AZ Amsterdam, Netherlands
来源：
BIOPHOTONICS AND NEW THERAPY FRONTIERS | 2006年 / 6191卷
关键词：
light scattering; low coherence; interferometry; laser Doppler;
D O I：
10.1117/12.661618
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
We report the development of non-invasive, path length resolved Doppler measurements of the multiply scattered light in turbid media, for different absorptions using phase modulated Mach-Zehnder low coherence interferometer, with separate fibers for illumination and detection. A Doppler broadened phase modulation interference peak is observed that shows an increase in the average Doppler shift with optical path length, independent of absorption. The estimated path length distributions indicate suppression and narrowing for increasing absorption and can be related by Lambert-Beer's law.
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页数：8
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