Research on pixel MTF of low-light image sensor

Gengyun Wang; Ruimeng Zhang; Hongbo Bu

doi:10.1117/12.3038909

27 November 2024 Research on pixel MTF of low-light image sensor

Gengyun Wang, Ruimeng Zhang, Hongbo Bu

Proceedings Volume 13236, Optoelectronic Devices and Integration XIII; 132360O (2024) https://doi.org/10.1117/12.3038909
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

Low light detectors refer to photodetectors that perform imaging in lunar and lower illumination environments. The main types of detectors include electrical gain type detectors represented by EMCCD, photoelectric gain type detectors represented by Microchannel Panel (MCP) ICCD, and the latest scientific level CMOS image sensor (sCMOS). Enhanced low light detectors are more suitable for target detection and edge bright spot detection applications. Extremely dim targets can exceed the noise threshold with extremely high gain, so that the target will not be submerged in noise. Scientific grade CMOS image sensors are more suitable for array low light imaging applications, with better imaging quality than enhanced low light detectors. This article calculates the MTF based on the optical and electrical parameters of the low light detector. The comprehensive MTF at the Nyquist frequency of the three low light detectors are 0.48, 0.13, and 0.63, respectively.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Gengyun Wang, Ruimeng Zhang, and Hongbo Bu "Research on pixel MTF of low-light image sensor", Proc. SPIE 13236, Optoelectronic Devices and Integration XIII, 132360O (27 November 2024); https://doi.org/10.1117/12.3038909

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KEYWORDS

Modulation transfer functions

CMOS sensors

Image sensors

Charge-coupled devices

CCD image sensors

Electron multiplying charge coupled devices

Microchannel plates

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