Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, Tsukuba, Japan.
Opt Lett. 2013 Jan 15;38(2):115-7. doi: 10.1364/OL.38.000115.
We describe a resolution-improved spectral-domain (SD) optical coherence tomography (OCT) based on classical intensity correlations as a counterpart of the recently proposed intensity-based time-domain OCT. Similarly to quantum OCT, the setup employs the Hong-Ou-Mandel interferometer at the output of the conventional SD-OCT. It is shown theoretically that a factor-of-√2 improvement in axial resolution is obtained with this arrangement. Some unique and useful features of our proposed system are addressed.
我们描述了一种基于经典强度相关的分辨率提高的光谱域（SD）光学相干断层扫描（OCT），作为最近提出的基于强度的时域 OCT 的对应物。与量子 OCT 类似，该设置在传统 SD-OCT 的输出端采用 Hong-Ou-Mandel 干涉仪。理论上表明，这种布置可以将轴向分辨率提高 √2 倍。我们提出的系统的一些独特而有用的特性也得到了探讨。
