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Correcting Optical-Axis Calculation in Polarization-Sensitive Optical Coherence Tomography

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2 Author(s)
Chuanmao Fan ; Dept. of Biol. Eng., Univ. of Missouri, Columbia, MO, USA ; Gang Yao

Polarization-sensitive optical coherence tomography (PSOCT) has found many applications in imaging birefringence tissue samples. Polarization-sensitive detection is often implemented by utilizing a circularly polarized incident light and detecting the two orthogonal horizontal- and vertical-polarized interference components. However, the obtained optical axes images were inappropriately represented as depth-dependent periodic maps in all reported studies. A detailed analysis confirmed that this misrepresentation was caused by the accumulation of optical retardation with depth. A simple method was proposed to numerically correct this optical-axis calculation. Experimental studies in tendon tissue demonstrated that this method can be applied to map the 2-D optical-axis distributions in enface PSOCT images.

Published in:
Biomedical Engineering, IEEE Transactions on  (Volume:57 ,  Issue: 10 )

Date of Publication: Oct. 2010

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