Sensitivity Characteristics of Microfiber Fabry-Perot Interferometric Photoacoustic Sensors
Sensitivity Characteristics of Microfiber Fabry-Perot Interferometric Photoacoustic Sensors
复制标题
微纤维法布里-珀罗干涉光声传感器的灵敏度特性
DOI：
10.1109/jlt.2019.2922223
复制
发表时间：
2019-09-01
影响因子：
4.7
通讯作者：
Li, Zhengbin
中科院分区：
文献类型：
--
作者：
Wang, Xiuxin;Jiang, Yuhao;Li, Zhengbin
提出了一种用于光声传感的微光纤法布里-珀罗（FP）干涉仪。它是利用193 nm紫外曝光和相位掩模技术制作的。在微尺度光纤中形成的两个光纤布拉格光栅作为FP腔用作传感器。与常规相比，新的特性归因于微纤维段的折射率变化。研究了微光纤FP干涉型光声传感器对声压、温度和折射率的依赖性。这种直径为微米级的小型光声传感器适用于光声成像，特别是光声显微层析成像。
A microfiber Fabry-Perot (FP) interferometer is proposed for photoacoustic sensing. It is fabricated by utilizing the 193 nm UV exposure and the phase mask technique. Two fiber Bragg gratings which are formed in a microscaled optical fiber as a FP cavity serves as a sensor. In contrast to the conventional, new characteristics are attributed to the microfiber segment of the refractive index change. The microfiber FP interferometric photoacoustic sensor dependencies on acoustic pressure, temperature, and refractive index are investigated. This compact photoacoustic sensor, with the diameter of microns, is suitable for photoacoustic imaging, especially in photo acoustic microtomography.