Authors: Zhixin Tan Xuejin Li Yuzhi Chen Ping Fan
Publish Date: 2013/09/05
Volume: 9, Issue: 1, Pages: 167-173
Abstract
Inspired by the classic theory we suggest that the performance of a Dshaped fiber optical surface plasmon resonance SPR sensor can be improved by manipulating the fiber core mode To demonstrate this we propose a novel fiber SPR sensor based on a hollow core photonic crystal fiber with liquid mixture filled in the core The fiber sensor design involves a sidepolished fiber with gold film deposited on the polished plane and liquid filling Numerical simulation results suggest that by tuning the refractive index of the liquid mixture the predicted sensitivity will be over 6430 nm/refractive index unit for an aqueous environment which is competitive for fiber chemical sensing This optimization method may lead to an ultrahigh sensitivityfiber optical biosensorThis work is supported by the National Science Foundations of China under grants 61275125 the Research Foundation for the Doctoral Program of Higher Education of Ministry of Education 20124408110003 the Province–Ministry Industry–University–Institute Cooperation Project of Guangdong Province under grant 2010B090400328 the Shenzhen Science and Technology Project the Shenzhen Nanshan District Science and Technology Project and the Highlevel Talents Project of Guangdong Province
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