A low-cost ultraviolet-to-infrared absolute quantum efficiency characterization system of detectors

TL;DR

This paper introduces a cost-effective system for measuring the quantum efficiency of ultraviolet to infrared detectors using commercial components, providing a detailed procedure and example results.

Contribution

The paper presents a novel, low-cost setup for absolute quantum efficiency characterization of detectors, including detailed construction steps and example measurements.

Findings

Successful measurement of quantum efficiency for two CMOS sensors

Cost-effective setup using off-the-shelf components

Provides a reproducible procedure for detector characterization

Abstract

We present a low-cost ultraviolet to infrared absolute quantum efficiency detector characterization system developed using commercial off-the-shelf components. The key components of the experiment include a light source,a regulated power supply, a monochromator, an integrating sphere, and a calibrated photodiode. We provide a step-by-step procedure to construct the photon and quantum efficiency transfer curves of imaging sensors. We present results for the GSENSE 2020 BSI CMOS sensor and the Sony IMX 455 BSI CMOS sensor. As a reference for similar characterizations, we provide a list of parts and associated costs along with images of our setup.