论文标题
X射线计算的$μ$ tomography用于表征光纤
X-ray computed $μ$-tomography for the characterization of optical fibers
论文作者
论文摘要
尽管使用无处不在的应用，但通过全光学技术的玻璃纤维表征仍面临一些局限性。最近，已经提出了X射线吸收作为可视化标准和微结构光纤内部结构的一种方法。在这里，我们利用X射线吸收为非破坏性技术来表征光玻璃纤维。从吸收对比X射线计算的微型学测量值开始，我们获得了有关光学频率下纤维折射率的空间曲线的信息。我们通过将其结果与基于电子光谱或多光子显微镜的互补表征技术进行比较，确认了方法的有效性。
In spite of their ubiquitous applications, the characterization of glass fibers by means of all-optical techniques is still facing some limitations. Recently, X-ray absorption has been proposed as a method for visualizing the inner structure of both standard and microstructure optical fibers. Here, we exploit X-ray absorption as nondestructive technique for the characterization of optical glass fibers. Starting from absorption contrast X-ray computed micro-tomography measurements, we obtain information about the spatial profile of the fiber refractive index at optical frequencies. We confirm the validity of our approach by comparing its results with complementary characterization techniques, based on electron spectroscopy or multiphoton microscopy.
