IEEE Trans Biomed Circuits Syst. 2009 Oct;3(5):259-66. doi: 10.1109/TBCAS.2009.2022835.
This paper proposes and demonstrates a polarization-analyzing CMOS sensor based on image sensor architecture. The sensor was designed targeting applications for chiral analysis in a microchemistry system. The sensor features a monolithically embedded polarizer. Embedded polarizers with different angles were implemented to realize a real-time absolute measurement of the incident polarization angle. Although the pixel-level performance was confirmed to be limited, estimation schemes based on the variation of the polarizer angle provided a promising performance for real-time polarization measurements. An estimation scheme using 180 pixels in a 1deg step provided an estimation accuracy of 0.04deg. Polarimetric measurements of chiral solutions were also successfully performed to demonstrate the applicability of the sensor to optical chiral analysis.
本文提出并展示了一种基于图像传感器架构的偏振分析 CMOS 传感器。该传感器的设计针对微化学系统中的手性分析应用。传感器具有单片嵌入式偏振器。实现了不同角度的嵌入式偏振器，以实现对入射偏振角的实时绝对测量。尽管像素级性能受到限制，但基于偏振器角度变化的估计方案为实时偏振测量提供了有前景的性能。使用 1 度步长的 180 个像素的估计方案提供了 0.04 度的估计精度。还成功地对手性溶液进行了偏振测量，以证明传感器在手性光学分析中的适用性。
