| Zugriffsnummer | 23446 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Towards traceable radiometry in the terahertz region |
| Autor(in); Institution |
Werner, Lutz; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Hübers, Heinz-Wilhelm; German Aerospace Center (DLR), Berlin, GERMANY
Meindl, Peter; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Müller, Ralf; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Richter, Heiko; German Aerospace Center (DLR), Berlin, GERMANY
Steiger, Andreas; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
|
| Quelle/Jahr | Metrologia: 46 (2009), 4, S160 - S164 |
| ISSN | 0026-1394 (PRINT) ; 1681-7575 (ONLINE) |
| DOI | |
| Verlag | Bristol [u.a.]: Inst. of Physics Publ. |
| Konferenzangaben | NEWRAD 2008, 10th International Conference on New Developments and Applications in Optical Radiometry, Daejeon, 13–16 October 2008, Korea |
| Zusammenfassung | PTB and DLR join their expertise and experience in optical radiometry and in THz techniques to perform what is to our knowledge the first traceable measurement of radiant power of a THz quantum cascade laser and the first absolute calibration of a THz radiation detector against a cryogenic radiometer (CR). A total standard uncertainty of 7.3 % was achieved at a frequency of 2.5 THz corresponding to a wavelength of 120 μm. This uncertainty is dominated by the limited knowledge of the absorptance of the CR cavity. All other uncertainty contributions including those arising from diffraction are only 2 %. Auch erschienen in: Proceedings of NEWRAD. S. 237-238 |
