Phase modulation and structural effects in a D-shaped all-solid photonic crystal fiber surface plasmon resonance sensor
Phase modulation and structural effects in a D-shaped all-solid photonic crystal fiber surface plasmon resonance sensor
复制标题
D形全固体光子晶体光纤表面等离子体共振传感器的相位调制和结构效应
DOI：
10.1364/oe.22.015049
复制
发表时间：
2014-06-16
期刊：
影响因子：
3.8
通讯作者：
Fan, Ping
中科院分区：
文献类型：
--
作者：
Tan, Zhixin;Hao, Xin;Fan, Ping
采用有限元法对一种基于全固态光子晶体光纤（PCF）的D型光纤表面等离子体共振传感器进行了数值研究。在侧抛光的PCF传感器中，场泄漏被引导穿透杆之间的差距，在深抛光的情况下引起显著的相位调制。利用这些放大的相移，一个高性能的光纤传感器的设计提出。从这种新的传感器设计所产生的显着增强应提升到能够检测范围广泛的生物化学相互作用，这使得它特别有吸引力的许多在体内和原位生物分析应用的范围内的光纤SPR传感器的性能。几个参数的影响场泄漏，如抛光位置，节距的PCF，和棒直径，检查，以评估其影响。此外，我们还建立了一个数学模型来描述改变D形PCF传感器的结构参数对倏逝场和传感器性能的影响。(C)2014年美国光学学会
We numerically investigate a D-shaped fiber surface plasmon resonance sensor based on all-solid photonic crystal fiber (PCF) with finite element method. In the side-polished PCF sensor, field leakage is guided to penetrate through the gap between the rods, causing a pronounced phase modulation in the deep polishing case. Taking advantage of these amplified phase shifts, a high-performance fiber sensor design is proposed. The significant enhancements arising from this new sensor design should lift the performance of the fiber SPR sensor into the range capable of detecting a wide range of biochemical interactions, which makes it especially attractive for many in vivo and in situ bioanalysis applications. Several parameters which influence the field leakage, such as the polishing position, the pitch of the PCF, and the rod diameter, are inspected to evaluate their impacts. Furthermore, we develop a mathematical model to describe the effects of varying the structural parameters of a D-shaped PCF sensor on the evanescent field and the sensor performance. (C) 2014 Optical Society of America