用于生物传感器的超薄壁微管  

Ultrathin-wall micro-tube for biosensor

作　　者：庞璐[1] 宁鼎[1] 李瑞辰[1] 杨鹏[1] 刘铁根[2] 

机构地区：[1]中国电子科技集团公司第46研究所,天津300220 [2]天津大学,天津300220

出　　处：《光通信技术》2013年第2期32-34,共3页Optical Communication Technology

基　　金：国家973计划项目(No.210CB327802)资助

摘　　要：进行了空心光纤的回音壁谐振模理论分析,确定了微管结构的参数。研制出了直径为144.6μm、壁厚为9.2μm的微毛细管,并采用ZF13棱镜通过倏逝场耦合成功激发了微管的回音壁谐振模。利用不同浓度的乙醇水溶液初步展示了微管生物传感器回音壁谐振模谐振波长对折射率的敏感性,在1550nm谐振波长处,入射光角度为40°时,获得了13.4nm/RIU传感灵敏度。The principle ofbio-sensing based on refractive index change is presented,the parameters of the mi- cro-ring structure is determined. The micro-tube （diameter is 144.6μ m, wall thickness is 9.2μ m） is devel- oped,with the prism made from ZF13 material, WGM of micro-tube is successfully observed by evanescent coupling. The mixture of water and ethanol were used for experiment research on refractive index change sen- siti.vity of micro-tube biosensor,at the resonance wavelength 1555.0nm, 13.4nm/RIU sensitivity was obtained with 40° incident angle.

关 键 词：回音壁谐振模 超薄壁 微管 传感器 

分 类 号：TN253[电子电信—物理电子学]