红外与激光工程, 2018, 47 (2): 0222002, 网络出版: 2018-04-26   

微环差分光子生物传感器的传感性能

Sensing performance of micro-ring differential optical biosensor
作者单位
电子科技大学 光电信息学院, 四川 成都 610054
摘要
通过模拟仿真, 研究了基于绝缘衬底上的硅(Silicon-On-Insulator, SOI)的微环生物传感器的传感性能, 得出其体传感灵敏度为38.71 nm/RIU, 探测极限为1.8×10-3 RIU, Q值为2.22×104。基于该结构, 分析了噪声对传感器性能的影响, 包括光源噪声和温度噪声。为了降低噪声影响, 设计了具有参考和探测通道的双微环差分传感器, 通过差分运算扣除噪声引起的谐振波长漂移, 从而可以有效降低噪声对传感器探测结果的影响。通过数值模拟和计算, 其被探测物的折射率变化的相对误差减小了15.85%, 表明微环差分传感器可以有效降低噪声的影响, 对提高微环生物传感器的性能将有极大的促进作用。
Abstract
The sensing performance of micro-ring biosensor on Silicon-On-Insulator(SOI) was studied through simulation. The sensitivity of 38.71 nm/RIU, detection limit of 1.8×10-3 RIU and Q factor of 2.22×104 were achieved. The effects of noise on the sensor, including the light source noise and temperature noise, were then investigated. A dual micro-ring differential sensor with reference and probe channels was proposed, and the wavelength drift induced by the noises can be deducted to reduce the influence of noise by this differential operation. The relative error of the refractive index change was reduced by 15.85% through the calculation and numerical simulation, so the micro-ring differential biosensor can effectively reduce the influence of noise to enhance the sensing performance of the micro-ring biosensor.

管磊, 王卓然, 袁国慧, 陈昱任, 董礼, 彭真明. 微环差分光子生物传感器的传感性能[J]. 红外与激光工程, 2018, 47(2): 0222002. Guan Lei, Wang Zhuoran, Yuan Guohui, Chen Yuren, Dong Li, Peng Zhenming. Sensing performance of micro-ring differential optical biosensor[J]. Infrared and Laser Engineering, 2018, 47(2): 0222002.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!