Work

Room temperature dual-mode internal quantum deficiency measurement with propagated uncertainty to 0.03% (k = 2)

Year: 2024

Type: article

Abstract: We present improvements in dual-mode calibration of predictable quantum efficient detectors and demonstrate the importance of calculating absolute uncertainties instead of relative uncertainties. We have implemented a new uncertainty component for the thermal fluctuations in the temperature signal which results in a propagated Type A uncertainty, matching the observed standard deviation. A new thermal drift correction method exploiting a monitor thermistor on the heat sink is relaxing the need for thermal stabilisation of the experimental set-up. With beam position uncertainty ±0.25 mm and background electrical power varying from 10 μW to 900 μW, the measured internal quantum deficiency (IQD) is in average 0.00% ± 0.03% (k = 2). The IQD exhibits clear systematic effects of beam position and background power, showing the need for improved design of dual-mode modules to further improve the uncertainty.

Source: Metrologia

DOI: 10.1088/1681-7575/ad7b24

Authors: Johanne Heitmann Solheim, Eivind Bardalen, Jarle Gran

Institutions: Norwegian Metrology Service, University of South-Eastern Norway

Language: English

Topic: Calibration and Measurement Techniques

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,165

Funders: European Commission, HORIZON EUROPE Framework Programme, European Metrology Programme for Innovation and Research