Electronics Letters (Jun 2021)

A polarisation‐analysing CMOS image sensor for sensitive polarisation modulation detection

  • R. Okada,
  • K. Sasagawa,
  • M. Haruta,
  • H. Takehara,
  • H. Tashiro,
  • J. Ohta

DOI
https://doi.org/10.1049/ell2.12169
Journal volume & issue
Vol. 57, no. 12
pp. 472 – 474

Abstract

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Abstract 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.

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