An ultrastable laser system at 689 nm for cooling and trapping of strontium

• Verfasst von: Qiao, Chang [VerfasserIn]
• Verfasst von: Zhu, Bing [VerfasserIn]
• Verfasst von: Weidemüller, Matthias [VerfasserIn]
• Titel: An ultrastable laser system at 689 nm for cooling and trapping of strontium
• Verf.angabe: Chang Qiao, C.Z. Tan, F.C. Hu, Luc Couturier, Ingo Nosske, Peng Chen, Y.H. Jiang, Bing Zhu, Matthias Weidemüller
• E-Jahr: 2019
• Jahr: 20 October 2019
• Umfang: 10 S.
• Fussnoten: Gesehen am 04.12.2019
• Titel Quelle: Enthalten in: Applied physics / B
• Ort Quelle: Berlin : Springer, 1981
• Jahr Quelle: 2019
• Band/Heft Quelle: 125(2019,11) Artikel-Nummer 215, 10 Seiten
• ISSN Quelle: 1432-0649
• DOI: doi:10.1007/s00340-019-7328-3
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1684157358

Abstract

We present a 689-nm cavity-based laser system for cooling and trapping strontium atoms. The laser is stabilized to a high-finesse cavity by the Pound-Drever-Hall technique, exhibiting a frequency stability in the 10−1410−1410^{-14} range for averaging times up to 100 s. A cavity drift of 8 kHz per day is mapped out and compensated. At short times, the laser exhibits a linewidth of a few kilohertz. With this laser system, we realize a magneto-optical trap of strontium operated on the narrow inter-combination transition yielding sub-microkelvin temperatures, and demonstrate absorption spectroscopy on the strontium inter-combination line.