Zhang Jun, Jung Woonggyu, Nelson J, Chen Zhongping
Opt Express. 2004 Nov 29;12(24):6033-9. doi: 10.1364/opex.12.006033.
A swept source based polarization-sensitive Fourier domain optical coherence tomography (FDOCT) system was developed that can acquire the Stokes vectors, polarization diversity intensity and birefringence images in biological tissue by reconstruction of both the amplitude and phase terms of the interference signal. The Stokes vectors of the reflected and backscattered light from the sample were determined by processing the analytical complex fringe signals from two perpendicular polarizationdetection channels. Conventional time domain OCT (TDOCT) and spectrometer based FDOCT systems are limited by the fact that the input polarization states are wavelength dependent. The swept source based FDOCT system overcomes this limitation and allows accurate setting of the input polarization states. From the Stokes vectors for two different input polarization states, the polarization diversity intensity and birefringence images were obtained.
开发了一种基于扫频光源的偏振敏感傅里叶域光学相干断层扫描（FDOCT）系统，该系统可以通过重建干涉信号的幅度和相位项来获取生物组织中的斯托克斯矢量、偏振分集强度和双折射图像。通过处理来自两个垂直偏振检测通道的解析复条纹信号，确定了样品反射和后向散射光的斯托克斯矢量。传统的时域光学相干断层扫描（TDOCT）系统和基于光谱仪的FDOCT系统受到输入偏振态与波长相关这一事实的限制。基于扫频光源的FDOCT系统克服了这一限制，并允许精确设置输入偏振态。从两种不同输入偏振态的斯托克斯矢量中，获得了偏振分集强度和双折射图像。
