Journal
IEEE TRANSACTIONS ON ELECTRON DEVICES
Volume 65, Issue 6, Pages 2544-2551Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TED.2018.2829190
Keywords
PolarizationCMOSimage sensor; wire-grid polarizer (WGP)
Ask authors/readers for more resources
A 3.2-MP four-directional polarization image sensor with air-gap wire-grid polarizer is described. The image sensor was fabricated using a wafer process and incorporates back-illuminationand an antireflection layer to minimize optical flaring and ghosting problems. In testing, the sensor achieved a polarization transmittance of 63.3% and an extinction ratio of 85 at 550 nm, thereby outperforming conventional polarization sensors. The proposedsensor also exhibited good oblique-incidence characteristics, even with small polarization pixels of 2.5 mu m. Based on these results, the proposed image sensor is suitable for various megapixel fusion-imaging applications, such as reducing surface reflections, highly accurate depth mapping, and condition-robust surveillance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available