布洛赫表面波传感特性研究  

Sensing characteristics of Bloch surface wave

作　　者：孔维敬[1] 尹荣国 刘沁雨 KONG Weijing;YIN Rongguo;LIU Qinyu(School of Electronic Engineering,Tianjin University of Technology and Education,Tianjin300222,China)

机构地区：[1]天津职业技术师范大学电子工程学院,天津300222

出　　处：《天津职业技术师范大学学报》2022年第2期1-6,I0002,共7页Journal of Tianjin University of Technology and Education

基　　金：国家自然科学基金青年项目(61505145);天津市科技计划项目(20YDTPJC02010);天津市教委科研计划项目(2021KJ003).

摘　　要：布洛赫表面波传感检测技术具有快速实时、免标记的特点。现有的传感检测方法灵敏度较低,极大限制了其在传感检测领域的应用。为了有效提升布洛赫表面波传感检测灵敏度,基于激发布洛赫表面波的耦合共振效应,研究了一维光子晶体带隙表面波传感芯片设计方法。通过对布洛赫表面波激发时反射光束特性进行分析计算,对其在生化传感检测领域的应用展开探索,实现了高灵敏度的传感检测。利用布洛赫表面波激发时显著增强的古斯汉欣位移效应,实现了基于古斯汉欣位移的高灵敏度传感检测。研究成果旨在为设计及实现高性能新型集成光学器件提供理论和技术基础。Bloch surface wave(BSW) holds the properties of real-time and label-free detection. However,its application in biochemical sensing is greatly restricted due to its low detection sensitivity of the current sensing methods. Aiming at im-proving the sensing sensitivity of BSW,this paper studies the method of designing the one-dimensional photonic crystal band-gap surface wave sensor structure based on the coupling resonance effect of the excitation of BSW. By analyzing and calculating the characteristics of the reflection beam under the excitation of BSW mode,its further application in biochemical sensing is explored and a high-sensitive sensing capability has been achieved. Leveraging the dramatically enhanced GoosHanchen(GH) shift induced by the excitation of BSW,a high-sensitive GH shift sensor has also been realized. The above work is expected to provide an important theoretical and technical basis for the realization of high-performance integrated photonic devices.

关 键 词：布洛赫表面波(BSW) 光子带隙(PBG) 古斯汉欣位移 传感 

分 类 号：O743[理学—晶体学]