SBIR Phase II: Micro-Optic Spectroscopic Imaging Sensor

这个小企业创新研究（SBIR）二期项目将开发一种基于偏振敏感、衍射微光学阵列的微光学光谱成像传感器（MOSIS）原型。MOSIS原型将是一个微型、轻量级的单片设备，能够实时进行多光谱、偏振成像。MOSIS是一种简单的焦平面阵列器件，由三个基本元素堆叠而成：折射微透镜阵列；一对共轭双折射衍射光学阵列二维探测器阵列，可以作为商用CCD芯片。第一阶段通过开发分析模型和计算机模拟，并通过对聚合物和双折射材料的实验评估以及通过制造双折射衍射光学元件来演示MOSIS技术的可行性。第二阶段将优化MOSIS设计，提高器件的性能效率，并将其封装成一个紧凑的原型，具有256x256像素，6到12个同步光谱偏振通道，宽视场和用于实时光谱图像传感和识别的高速光谱签名处理器。MOSIS模块可以简单地集成到现有的遥感数字视频摄像机系统中，而不会对图像质量进行重大修改或影响。商业应用预计在紧凑、低成本、可靠、偏振成像、多光谱遥感传感器系统，包括海洋监测、环境传感、矿物识别、农业监测、生物医学和化学光谱成像、工业检查、消防和执法。

This Small Business Innovation Research (SBIR) Phase II project will develop a prototype Micro-Optic Spectroscopic Imaging Sensor (MOSIS), based on a polarization sensitive, diffractive micro-optic array. The MOSIS prototype will be a miniature, lightweight monolithic device capable of multi-spectral, polarimetric imaging in real time. MOSIS is a simple focal-plane array device consisting of a stack of three basic elements: a refractive microlens array; a pair of conjugate birefringent diffractive optics arrays; and a 2-D detector array, which can be a commercial CCD chip. Phase I demonstrated the feasibility of MOSIS technology by developing an analytical model and computer simulation, and through experimental evaluation of polymers and birefringent materials and demonstration of the concept by fabricating a birefringent diffractive optical element. Phase II will optimize the MOSIS design, increasing the performance efficiency of the device and packaging it into a compact prototype with 256x256 pixels, 6 to 12 simultaneous spectral polarimetric channels, wide field-of-view, and a high speed spectral signature processor for real-time spectral image sensing and identification. The MOSIS module can be integrated simply into an existing remote sensing digital video camera system without major modification or effect on image quality. Commercial applications are expected in compact, low-cost, reliable, polarimetric imaging, multispectral sensor systems for remote sensing, including ocean monitoring, environmental sensing, mineral identification, agricultural surveillance, and for biomedical and chemical spectroscopic imaging, industrial inspection, fire fighting, and law enforcement.