High sensitivity fiber acoustic sensor tip working at 1550 nm fabricated by two-photon polymerization technique
High sensitivity fiber acoustic sensor tip working at 1550 nm fabricated by two-photon polymerization technique
复制标题
采用双光子聚合技术制造的工作波长为 1550 nm 的高灵敏度光纤声学传感器尖端
DOI：
10.1016/j.sna.2017.03.040
复制
发表时间：
2017-06-15
影响因子：
4.6
通讯作者：
Qu, Shiliang
中科院分区：
文献类型：
--
作者：
Li, Min;Liu, Yi;Qu, Shiliang
采用双光子聚合技术制备了一种超紧凑型光纤声传感器针尖。光纤传感器针尖由单模光纤端面的两个侧壁和由侧壁支撑的薄膜组成，形成光纤内嵌法布里-珀罗微腔。利用双光子聚合技术的制备优势，通过腔长与膜厚的精确匹配，可以将正交相位偏置点控制在1550 nm的固定波长处。在1550 nm激光波长下，光纤传感器针尖的声压达到0.0508 ± 0.0052 nm/Pa。光纤声学传感器尖端由于其高灵敏度、优异的生物相容性、超紧凑的尺寸和不依赖于激光波长调谐而适用于工业和生物医学应用。(C)2017爱思唯尔B. V.保留所有权利。
An ultracompact fiber acoustic sensor tip was fabricated by using two-photon polymerization technique. The fiber sensor tip was consisted of two sidewalls on the end surface of the single mode fiber and a film held up by the sidewalls, which forms fiber inline Fabry-Perot micro-cavity. Owing to the fabrication advantages of two-photon polymerization technique, the quadrature phase bias point can be controlled at fix wavelength of 1550 nm by matching the cavity length with the film thickness accurately. At laser wavelength of 1550 nm, the acoustic pressure of the fiber sensor tip reaches 0.0508 +/- 0.0052 nm/Pa. The fiber acoustic sensor tip can be suitable for both industrial and biomedical applications due to its high sensitivity, excellent biocompatibility, ultracompact size and independent of laser wavelength tuning. (C) 2017 Elsevier B.V. All rights reserved.