Primary standard of optical power operating at room temperature

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Dönsberg, Timo
dc.contributor.author Sildoja, Meelis
dc.contributor.author Manoocheri, Farshid
dc.contributor.author Merimaa, Mikko
dc.contributor.author Petroff, Leo
dc.contributor.author Ikonen, Erkki
dc.contributor.editor Filtz, J. R
dc.date.accessioned 2017-05-11T08:37:30Z
dc.date.available 2017-05-11T08:37:30Z
dc.date.issued 2014
dc.identifier.citation Dönsberg , T , Sildoja , M , Manoocheri , F , Merimaa , M , Petroff , L & Ikonen , E 2014 , Primary standard of optical power operating at room temperature . in J R Filtz (ed.) , 16th International Congress of Metrology . , 00012 , EPJ Web of Conferences , vol. 77 , EDP SCIENCES , pp. 1-5 , International Congress of Metrology , Paris , France , 7-10 October . DOI: 10.1051/epjconf/20147700012 en
dc.identifier.isbn 9781634393287
dc.identifier.issn 2100-014X
dc.identifier.other PURE UUID: 8dac2964-0963-4785-9580-a83a4db08d78
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/primary-standard-of-optical-power-operating-at-room-temperature(8dac2964-0963-4785-9580-a83a4db08d78).html
dc.identifier.other PURE LINK: http://dx.doi.org/10.1051/epjconf/20147700012
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/12975236/epjconf_icm2014_00012.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/25685
dc.description.abstract The Predictable Quantum Efficient Detector (PQED) is evaluated as a new primary standard of optical power. Design and characterization results are presented for a new compact room temperature PQED that consists of two custom-made induced junction photodiodes mounted in a wedged trap configuration. The detector assembly includes a window aligned in Brewster angle in front of the photodiodes for high transmission of p polarized light. The detector can also be operated without the window, in which case a dry nitrogen flow system is utilized to prevent dust contamination of the photodiodes. Measurements of individual detectors at the wavelength of 488 nm indicate that reflectance and internal quantum efficiency are consistent within 14 ppm and 10 ppm (ppm = part per million), respectively, and agree with the predicted values. The measured photocurrent ratio of the two photodiodes confirms the predicted value for s and p polarized light, and the spatial variation in the photocurrent ratio can be used to estimate the uniformity in the thickness of the silicon dioxide layer on the surface of the photodiodes. In addition, the spatial non-uniformity of the responsivity of the PQED is an order of magnitude lower than that of single photodiodes. Such data provide evidence that the room temperature PQED may replace the cryogenic radiometer as a primary standard of optical power in the visible wavelength range. en
dc.format.extent 1-5
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher EDP Sciences
dc.relation.ispartof International Congress of Metrology en
dc.relation.ispartofseries 16th International Congress of Metrology en
dc.relation.ispartofseries EPJ Web of Conferences en
dc.relation.ispartofseries Volume 77 en
dc.rights openAccess en
dc.subject.other 213 Electronic, automation and communications engineering, electronics en
dc.subject.other 113 Computer and information sciences en
dc.subject.other 114 Physical sciences en
dc.subject.other 111 Mathematics en
dc.title Primary standard of optical power operating at room temperature en
dc.type A4 Artikkeli konferenssijulkaisussa fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Signal Processing and Acoustics
dc.contributor.department School services, ELEC
dc.subject.keyword 213 Electronic, automation and communications engineering, electronics
dc.subject.keyword 113 Computer and information sciences
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 111 Mathematics
dc.identifier.urn URN:NBN:fi:aalto-201705114069
dc.identifier.doi 10.1051/epjconf/20147700012
dc.type.version publishedVersion


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