The 87Sr optical frequency standard at PTB

Falke, Stephan; Schnatz, Harald; Vellore Winfred, Joseph Sundar Raaj; Middelmann, Thomas; Vogt, Stefan; Weyers, Stefan; Lipphardt, Burghard; Grosche, Gesine; Riehle, Fritz; Sterr, Uwe; Lisdat, Christian

doi:https://doi.org/10.1088/0026-1394/48/5/022

Zugriffsnummer	26850
Dokumenttyp	Zeitschriftenartikel
Peer Review	unbekannt
Sprache	Englisch
Titel	The ⁸⁷Sr optical frequency standard at PTB
Autor(in); Institution	Falke, Stephan; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig Schnatz, Harald; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig Vellore Winfred, Joseph Sundar Raaj; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig Middelmann, Thomas; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig Vogt, Stefan; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig Weyers, Stefan; 4.4, Zeit und Frequenz, PTB-Braunschweig Lipphardt, Burghard; 4.4, Zeit und Frequenz, PTB-Braunschweig Grosche, Gesine; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig Riehle, Fritz; 4, Optik, PTB-Braunschweig Sterr, Uwe; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig Lisdat, Christian; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Quelle/Jahr	Metrologia: 48 (2011), 5, 399 - 407
ISSN	0026-1394
DOI	https://doi.org/10.1088/0026-1394/48/5/022
URL	stacks.iop.org/Met/48/399
Verlag	Bristol [u.a.]: IOP [u.a.]
Klassifikationscode	PACS: 06.20.fb ; PACS: 06.20.fa ; PACS: 06.30.Ft ; PACS: 37.10.De ; PACS: 32.60.+i
Zusammenfassung	With ⁸⁷Sr atoms confined in a one-dimensional optical lattice, the frequency of the optical clock transition 5s² ¹S₀-5s5p ³P₀ has been determined to be 429 228 004 229 872.9(5) Hz. The transition frequency was measured with the help of a femtosecond-frequency comb against one of Physikalisch-Technische Bundesanstalt (PTB’s) H-masers whose frequency was measured simultaneously by the PTB Cs-fountain clock CSF1. The Sr optical frequency standard contributes with a fractional uncertainty of 1.5 × 10^-16 to the total uncertainty. The agreement of the measured transition frequency with previous measurements at other institutes supports the status of this transition as the secondary representation of the second with the currently smallest uncertainty.

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Falke, S., Schnatz, H., Vellore Winfred, J. S. R., Middelmann, T., Vogt, S., Weyers, S., Lipphardt, B., Grosche, G., Riehle, F., Sterr, U., & Lisdat, C. (2011). The ⁸⁷Sr optical frequency standard at PTB. Metrologia, 48(5), 399–407. https://doi.org/10.1088/0026-1394/48/5/022

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