面向夜间环境应用的微光仿生偏振导航传感器关键技术研究

项目名称： 面向夜间环境应用的微光仿生偏振导航传感器关键技术研究

项目编号： No.51305057

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 关乐

作者单位： 大连理工大学

项目金额： 25万元

中文摘要： 针对偏振光导航系统微型化、高精度以及昼夜全天候应用的迫切需求，本项目拟通过对夜行性蜣螂在月光或仅有星光照耀环境下的行为对比实验与复眼背部边缘区域的形态学观察，探索昆虫神经重叠式复眼的微光探测机制和感光细胞中微绒毛的排列方式对不同光谱波段偏振敏感的特性规律；搭建成像式偏振测试系统对夜天光各波段偏振程度与分布进行测试分析；利用半导体工艺制作在夜晚对光谱中偏振最强的波段范围敏感的高响应度微光电探测器，基于表面等离子激元光学理论，时域有限差分算法以及面向MEMS系统级仿真的宏建模方法，结合纳米压印工艺在微光电探测器上集成设计制作出具有场增强效应和高偏振特性的表面等离子体透镜纳米结构，在夜晚晴朗条件下实现微光偏振敏感和探测功能；结合人工神经网络算法与嵌入式信号处理系统，最终研制出具有高灵敏度，面向夜晚环境应用的微光仿生偏振导航传感器，为未来昼夜全天候偏振导航的应用提供技术基础。

中文关键词： 偏振导航；微传感器；表面等离子体透镜；；

英文摘要： According to the urgent needs of the miniaturization, high sensitivity, and all-weather, the day and nights concurrently using applications for polarization navigation system,this project intends to investigate faint light detection mechanism of the neural superposition compound eye and the sensitive mechanism of the specific angle of microvilli arrangement in photoreceptor cells to the polarization pattern of moonlit sky through combining behavioral experiments of nocturnal dung beetle in moonlight, Milky Way and morphological observation for the dorsal rim area of compound eyes. The moon and star light spectral polarization performance will be tested using imaging polarimetry. The photodetectors with high spectral responsivity and the most polarization property in night will be fabricated based on semiconductor technology. Plasmonic lens with high field enhancement effect and polarization extinction ratio which is designed based on the optical theory of surface plasmon polarization, the Finite Difference Time Domain (FDTD) algorithm and macromodel based on MEMS system-level simulation is integrated fabricated on the photoelectric detector using nanoimprint technology. The nano structure of plasmonic lenses with near-field enhanced effect and high polarization property, is to imitate the focusing ability and po

英文关键词： polarization navigation；microsensor；plasmonic lens；；