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Journal of Biomedical Optics • Open Access

Retardance of bilayer anisotropic samples consisting of well-aligned cylindrical scatterers and birefringent media
Author(s): Yihong Guo; Nan Zeng; Honghui He; Celong Liu; E. Du; Yonghong He; Hui Ma

Paper Abstract

Both cylindrical scatterers and birefringent media may contribute to the anisotropy of tissue, where anisotropy can be characterized using polarization techniques. Our previous studies have shown that a layer of well-aligned cylindrical scatterers displays anisotropic properties similar to those of a piece of birefringent media, whose equivalent extraordinary axis is along the axial direction of the cylinders. We focused on a sample consisting of two layers of anisotropic media, with each layer having a different orientation; the characteristics of this sample were representative of the properties of multilayer fibrous tissues. Using a Mueller matrix decomposition method, we examined in detail how the total retardance and the equivalent extraordinary axis of the bilayered sample varied with changes in the retardance of the two layers and the direction of the extraordinary axis. The results of this study showed that, in such bilayer samples, a layer of well-aligned cylindrical scatterers generated a retardance that behaved exactly like the retardance generated by a piece of birefringent media. The simulated results were also confirmed by the results of experiments using aligned glass fibers.

Paper Details

Date Published: 9 May 2016
PDF: 6 pages
J. Biomed. Opt. 21(5) 055002 doi: 10.1117/1.JBO.21.5.055002
Published in: Journal of Biomedical Optics Volume 21, Issue 5
Show Author Affiliations
Yihong Guo, Tsinghua Univ. (China)
Peking Univ. (China)
Nan Zeng, Graduate School at Shenzhen, Tsinghua Univ. (China)
Honghui He, Graduate School at Shenzhen, Tsinghua Univ. (China)
Celong Liu, Graduate School at Shenzhen, Tsinghua Univ. (China)
E. Du, Graduate School at Shenzhen, Tsinghua Univ. (China)
Yonghong He, Graduate School at Shenzhen, Tsinghua Univ. (China)
Hui Ma, Graduate School at Shenzhen, Tsinghua Univ. (China)


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