Projects per year
Abstract
The stability of induced junction silicon photodiodes used to construct the predictable quantum efficient detector (PQED) has been studied over a time period of a decade by measurements of its spectral responsivity against absolute cryogenic radiometers (CR) in two independent laboratories at CMI and PTB. PQEDs operated at room temperature show a long-term temporal stability within 150 ppm over a broad spectral range during a 10-year period, well within the range of the claimed measurement uncertainty values of the CRs. This long term stability fulfills one of the fundamental requirements to establish a new primary standard for the measurement of power of optical radiation.
Original language | English |
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Article number | 065008 |
Number of pages | 6 |
Journal | Metrologia |
Volume | 59 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Dec 2022 |
MoE publication type | A1 Journal article-refereed |
Keywords
- photometry
- predictable quantum efficient detector
- radiometry
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Dive into the research topics of 'Long-term spectral responsivity stability of predictable quantum efficient detectors'. Together they form a unique fingerprint.Projects
- 2 Finished
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chipS-CALe: Self-calibrating photobiodes for the radiometric linkage to fundamental constants
Manoocheri, F. (Principal investigator), Porrasmaa, T. (Project Member), Sharma, S. (Project Member) & Korpusenko, M. (Project Member)
01/06/2019 → 30/11/2022
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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PREIN: Photonics Research and Innovation
Mäkelä, K. (Principal investigator)
01/01/2019 → 31/12/2022
Project: Academy of Finland: Other research funding