An Overview of CMOS Photodetectors Utilizing Current-Assistance for Swift and Efficient Photo-Carrier Detection

Sensors

Hans Ingelberts¹  Sven Boulanger¹  Thomas Lapauw¹  Gobinath Jegannathan¹  Thomas Van den Dries¹  Maarten Kuijk¹  Volodymyr Seliuchenko¹ 

[1] Department of Electronics and Informatics (ETRO), Vrije Universiteit Brussel, 1050 Brussels, Belgium;

关键词: current-assistance;    CAPD;    CMOS;    fast time-gated cameras;    demodulation;    avalanche;   

DOI  :  10.3390/s21134576

来源: DOAJ

【 摘 要 】

This review paper presents an assortment of research on a family of photodetectors which use the same base mechanism, current assistance, for the operation. Current assistance is used to create a drift field in the semiconductor, more specifically silicon, in order to improve the bandwidth and the quantum efficiency. Based on the detector and application, the drift field can be static or modulated. Applications include 3D imaging (both direct and indirect time-of-flight), optical receivers and fluorescence lifetime imaging. This work discusses the current-assistance principle, the various photodetectors using this principle and a comparison is made with other state-of-the-art photodetectors used for the same application.

【 授权许可】

Unknown