Influence of the transmission medium on the focusing performance of gradient-index fiber probe
Influence of the transmission medium on the focusing performance of gradient-index fiber probe
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DOI：
10.1016/j.ijleo.2015.12.082
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发表时间：
2016-01-01
期刊：
影响因子：
3.1
通讯作者：
Yu, Yingjie
中科院分区：
文献类型：
--
作者：
Bi, Shubo;Wang, Chi;Yu, Yingjie
为超小探头的研制和性能评价，分析了传输介质对梯度折射率（GRIN）光纤探头聚焦性能的影响。利用ABCD矩阵变换，推导出梯度折射率光纤探头聚焦性能与传输介质折射率的函数关系，给出了工作距离、光斑尺寸和景深与传输介质折射率的关系曲线。在相同参数下，随着传输介质折射率的增大，梯度折射率光纤探头的工作距离和景深增大，而光斑尺寸保持不变。结果表明，传输介质对梯度折射率光纤探头的工作距离和景深有一定的影响，而与光斑大小无关。(C)2015爱思唯尔有限公司All rights reserved.
The influence of transmission medium on the focusing performance of gradient-index (GRIN) fiber probe is analyzed for the development and performance evaluation of the ultra-small probe. ABCD matrix transformation is employed to derive the functional relationship between the focusing performance of GRIN fiber probe and the refractive index of transmission medium and present the curve graphs of working distance, spot size and depth of field on refractive index of transmission medium. Under the same parameters, the working distance and the depth of field of GRIN fiber probe increase with the increase of refractive index of transmission medium, but the spot size remains the same. The result shows that transmission medium has a certain influence on the working distance and the depth of field of GRIN fiber probe but has nothing to do with spot size. (C) 2015 Elsevier GmbH. All rights reserved.