Open AccessA polarisation‐analysing CMOS image sensor for sensitive polarisation modulation detection
Author(s) -
Okada R.,
Sasagawa K.,
Haruta M.,
Takehara H.,
Tashiro H.,
Ohta J.
Publication year - 2021
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12169
Subject(s) - image sensor , cmos , modulation (music) , optics , electronic engineering , optoelectronics , materials science , computer science , physics , engineering , acoustics
In this study, a polarisation‐analysing CMOS image sensor is fabricated for sensitive polarisation modulation detection. Although the image sensor with on‐pixel polarisers can image the incident polarisation collectively, its sensitivity to a weak polarisation change is not high. With the proposed method, an external polariser is used to enhance the polarisation modulation sensitivity with a polarisation image sensor. The performance of this highly sensitive polarisation image sensor and imaging experiments are evaluated using a flow channel.