The Japan Society of Applied Physics

2022 International Conference on Solid State Devices and Materials

2022 International Conference on Solid State Devices and Materials

2022年9月26日 〜 2022年12月23日
幕張メッセ

10:45 〜 11:00

[K-8-01] Electro-optic imaging system using a CMOS image sensor with a dual-layer on-pixel polarizer

〇Ryoma Okada1, Kiyotaka Sasagawa1, Maya Mizuno2, Hironari Takehara1, Makito Haruta1, Hiroyuki Tashiro1,3, Jun Ohta1 (1. Nara Institute of Science and Technology (Japan), 2. National Institute of Information and Communications Technology (Japan), 3. Kyushu Univ. (Japan))

Presentation style: On-site (in-person)

https://doi.org/10.7567/SSDM.2022.K-8-01

In this study, we demonstrate an electro-optic (EO) imaging system using an image sensor with dual-layer on-pixel polarizers composed of metal wire grids. The line and space of the dual-layer polarizer are both set to 0.7 µm. The extinction ratio at a wavelength of 780 nm is 3.49, which is considerably higher than that of a sin-gle-layer polarizer with identical line and space dimen-sions. The system improves signal detection performance by more than seven times in the EO imaging of a high-frequency electric field of 100 MHz.