DocumentCode :
1126967
Title :
Polarization-Analyzing CMOS Image Sensor With Monolithically Embedded Polarizer for Microchemistry Systems
Author :
Tokuda, T. ; Yamada, H. ; Sasagawa, K. ; Ohta, J.
Author_Institution :
Grad. Sch. of Mater. Sci., Nara Inst. of Sci. & Technol., Ikoma, Japan
Volume :
3
Issue :
5
fYear :
2009
Firstpage :
259
Lastpage :
266
Abstract :
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.
Keywords :
CMOS image sensors; chirality; polarimeters; CMOS image sensor; chiral solutions; microchemistry systems; monolithically embedded polarizer; optical chiral analysis; polarimetric measurements; Biomedical measurements; CMOS image sensors; Chemical sensors; Intelligent sensors; Optical polarization; Optical sensors; Sensor arrays; Sensor phenomena and characterization; Sensor systems; Temperature sensors; CMOS image sensor; Chiral analysis; polarization;
fLanguage :
English
Journal_Title :
Biomedical Circuits and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
1932-4545
Type :
jour
DOI :
10.1109/TBCAS.2009.2022835
Filename :
5156286
Link To Document :
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