A microfluidic refractometric sensor based on gratings in optical fibre microwires
A microfluidic refractometric sensor based on gratings in optical fibre microwires
复制标题
基于光纤微丝光栅的微流体折射传感器
DOI：
10.1364/oe.17.020866
复制
发表时间：
2009-11-09
期刊：
影响因子：
3.8
通讯作者：
Lu, Yanqing
中科院分区：
文献类型：
--
作者：
Xu, Fei;Brambilla, Gilberto;Lu, Yanqing
在本文中，我们研究了一种在光纤微丝中制造光栅的新方法，并讨论了它们在传感中的应用。光栅可以通过将光纤微丝缠绕在微结构棒上来制造。该方法避免了对细光纤微丝进行后处理，并且具有很大的灵活性：可以通过设计微结构棒中的气孔尺寸和位置来实现啁啾。通过利用内部通道中的大倏逝场，可以实现灵敏度 >10(3) nm/RIU 的微流体折射传感器。 (C) 2009 美国光学学会
In this paper we investigate a novel method to manufacture gratings in optical fiber microwires and discuss their application to sensing. Gratings can be manufactured by wrapping an optical fiber microwire on a microstructured rod. This method avoids post-processing the thin optical fiber microwire and it has great flexibility: chirping can be realized by designing the air hole size and position in the microstructured rod. By exploiting the large evanescent field in an inner channel, microfluidic refractometric sensors with sensitivity >10(3) nm/RIU can be achieved. (C) 2009 Optical Society of America