光子学报, 2012, 41 (2): 148, 网络出版: 2012-03-09  

基于离子交换条波导的生物溶液浓度传感研究

Biochemical Solution Concentration Sensing Using Stripe Waveguides Based on Ion Exchange Technology
作者单位
1 上海理工大学 a.医疗器械与食品学院
2 b.光电信息与计算机工程学院,上海 200093
3 上海理工大学b.光电信息与计算机工程学院,上海 200093
4 上海市现代光学系统重点实验室,上海 200093
5 日本东京农工大学 工学院应用化学系,日本 184-8588
摘要
提出并实施了一种实验推定离子交换单模条波导折射率分布的新方法,给出扩散系数可用常量等效的离子交换条件,导出了条波导离子交换制备过程的两维扩散方程的一般解,拟合推定了离子交换条波导的折射率分布.多波长测试的折射率色散通过引入玻璃色散关系解决,样品测试中表征导模吸收损耗的传播常量虚部由KK变换确定.在此基础上,试制了光纤-条波导-光纤一体化传感器结构,验证实测了多种不同浓度的葡萄糖溶液,最低检测限为0.1 μM,实现了低浓度微量测试,验证了条波导传感机制的有效性.
Abstract
An innovative method that refractive index distribution of single-mode ion exchange is reckoned using an experimental way was proposed and implemented.The key conditions are that a diffusion coefficient must be constant.Then two-dimensional diffusion equation with ion-exchange waveguide was deduced,the presumption of the ion exchange waveguide refractive index distribution of article was fitted.The Lorentz relation solved the optical dispersion problem in sensor test. Experimental results showed that characterization guided mode propagation imaginary part constants of absorption loss by the KK transform.On this basis,the trial of fiber-article waveguide - fiber optic integrated sensor was designed.The glucose concentration was measured and the detection limit was 0.1 μM.The experiments confirmed the validity of the method for a low concentration of trace tests.

邹任玲, 陈抱雪, 王悠悠, 隋国荣, 矶守. 基于离子交换条波导的生物溶液浓度传感研究[J]. 光子学报, 2012, 41(2): 148. ZOU Ren-ling, CHEN Bao-xue, WANG You-you, SUI Guo-rong, MAMORU Iso. Biochemical Solution Concentration Sensing Using Stripe Waveguides Based on Ion Exchange Technology[J]. ACTA PHOTONICA SINICA, 2012, 41(2): 148.

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