Abstract
Conventional polarization-sensitive optical coherence tomography (PS-OCT) can provide depth-resolved Stokes parameter measurements of light reflected from turbid media. A new algorithm that takes into account changes in the optical axis is introduced to provide depth-resolved birefringence and differential optical axis orientation images by use of fiber-based PS-OCT. Quaternion, a convenient mathematical tool, is used to represent an optical element and simplify the algorithm. Experimental results with beef tendon and rabbit tendon and muscle show that this technique has promising potential for imaging the birefringent structure of multiple-layer samples with varying optical axes.
Highlights
Optical coherence tomography (OCT), a noninvasive imaging technique for turbid media, uses coherence gating of the light source to obtain two- or threedimensional images.[1]
Polarization-sensitive OCT (PS-OCT) can provide additional information on the changes in light polarization states caused by birefringence, diattenuation of the sample, or both.[2,3,4,5,6,7,8,9,10]
In this Letter we present a new algorithm with a f iber-based PS-OCT system, which can resolve the problem when the optical axis changes as a function of depth and the polarization state changes within the fiber
Summary
Optical coherence tomography (OCT), a noninvasive imaging technique for turbid media, uses coherence gating of the light source to obtain two- or threedimensional images.[1]. Title Depth-resolved birefringence and differential optical axis orientation measurements with fiber-based polarization-sensitive optical coherence tomography. Depth-resolved birefringence and differential optical axis orientation measurements with fiber-based polarization-sensitive optical coherence tomography
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