High sensitivity angle-sensing photodetector

Chong Zhang; Jingpei Hu; Ruyi Zhou; Tiecheng Liu; Sergey Avakaw; Aijun Zeng; Huijie Huang

doi:10.1117/12.2533727

17 May 2019 High sensitivity angle-sensing photodetector

Chong Zhang, Jingpei Hu, Ruyi Zhou, Tiecheng Liu, Sergey Avakaw, Aijun Zeng, Huijie Huang

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111702L (2019) https://doi.org/10.1117/12.2533727
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

In this paper, a high sensitivity angle-sensing photodetector at the nanoscale is proposed, which mainly consists of SiO₂ substrate and two columns of separate silicon nano-blocks and four gold electrodes. When the light in the incident plane perpendicular to the columns is obliquely incident on the silicon nano-blocks, they will absorb different light energy. Then the concentration of electron hole pairs in nano-blocks is also different, which will affect the photocurrent detected by the detector. Simulation results further show that the detection accuracy of the photodetector in the range of 0-45° can reach 0.152° when irradiated with TM polarized light. This angle sensing photodetector has many advantages, such as high sensitivity, low cost, easy integration. It can be used in the fields of information acquisition of light field, automatic driving scene perception and machine vision.

Citation Download Citation

Chong Zhang, Jingpei Hu, Ruyi Zhou, Tiecheng Liu, Sergey Avakaw, Aijun Zeng, and Huijie Huang "High sensitivity angle-sensing photodetector", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111702L (17 May 2019); https://doi.org/10.1117/12.2533727

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available