Optic axis determination by fibre-based polarization-sensitive swept-source optical coherence tomography
Optic axis determination by fibre-based polarization-sensitive swept-source optical coherence tomography
复制标题
通过基于光纤的偏振敏感扫频光学相干断层扫描确定光轴
DOI：
10.1117/12.875081
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发表时间：
2011
影响因子：
3.5
通讯作者：
S. Matcher
中科院分区：
文献类型：
--
作者：
Zenghai Lu;Deepa Kasaragod;S. Matcher
我们描述了一种基于光纤的可变入射角（VIA）偏振敏感扫频光源光学相干层析成像（PS-SS-OCT）系统，以确定双折射生物组织的三维光轴。还探索了需要测量绝对快轴方向的单平面VIA-PS-OCT。一个国家的最先进的PS-SS-OCT系统与一些改进的硬件和软件被用来确定马肌腱的表观光学双折射的一些不同的照明方向。通过VIA方法得到切断马肌腱的极角和方位角，并与标称值进行比较。四分之一波片（QWP）和马肌腱被用作测试目标，以验证使用该系统的快轴测量。切断马肌腱的极角和方位角与预期值大致一致，在标称值的约8%范围内。的理论和实验分析的样品臂纤维上确定的光轴取向的影响，使用建议的定义的基础上的取向的本征偏振椭圆实验证实，该算法只正确地为特殊设置的样品臂纤维。一个建议的算法的基础上的庞加莱球上的斯托克斯矢量之间的角度被证实适用于所有设置的样品臂纤维。提出了一种标定方法来消除测量方向的符号模糊性，并通过使用QWP进行了实验验证。
We describe a fibre-based variable-incidence angle (VIA) polarization-sensitive swept-source optical coherence tomography (PS-SS-OCT) system to determine the 3D optical axis of birefringent biological tissues. Single-plane VIA-PS-OCT is also explored which requires measurement of the absolute fast-axis orientation. A state-of-the-art PS-SS-OCT system with some improvements both in hardware and software was used to determine the apparent optical birefringence of equine tendon for a number of different illumination directions. Polar and azimuthal angles of cut equine tendon were produced by the VIA method and compared with the nominal values. A quarter waveplate (QWP) and equine tendon were used as test targets to validate the fast-axis measurements using the system. Polar and azimuthal angles of cut equine tendon broadly agreed with the expected values within about 8% of the nominal values. A theoretical and experimental analysis of the effect of the sample arm fibre on determination of optical axis orientation using a proposed definition based on the orientation of the eigenpolarization ellipse experimentally confirms that this algorithm only works correctly for special settings of the sample arm fibre. A proposed algorithm based on the angle between Stokes vectors on the Poincaré sphere is confirmed to work for all settings of the sample arm fibre. A calibration procedure is proposed to remove the sign ambiguity of the measured orientation and was confirmed experimentally by using the QWP.
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影响因子：
3.5
作者：
Liu, Bin;Brezinski, Mark E.
通讯作者：
Brezinski, Mark E.
影响因子：
3.5
作者：
Jiao, SL;Wang, LHV
通讯作者：
Wang, LHV
影响因子：
3.6
作者：
Hui Wang;Muhammad K. Al-Qaisi;T. Akkin
通讯作者：
Hui Wang;Muhammad K. Al-Qaisi;T. Akkin
影响因子：
3.6
作者：
Srinivasan, V. J.;Wojtkowski, M.;Duker, J. S.
通讯作者：
Duker, J. S.
DOI：
--
发表时间：
1999-03
期刊：
The Journal of rheumatology
影响因子：
--
作者：
J. Herrmann;C. Pitris;B. Bouma;S. Boppart;C. Jesser;D. Stamper;J. Fujimoto;M. Brezinski
通讯作者：
J. Herrmann;C. Pitris;B. Bouma;S. Boppart;C. Jesser;D. Stamper;J. Fujimoto;M. Brezinski