| Zugriffsnummer | 47758 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Two-color grating magneto-optical trap for narrow-line laser cooling |
| Autor(in); Institution |
Bondza, Saskia; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig; Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Satellitengeodäsie und Inertialsensorik, c/o Leibniz Universität Hannover, Hannover, GERMANY
Lisdat, Christian; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Kroker, Stefanie; 4, Optik, PTB-Braunschweig; LENA Laboratory for Emerging Nanometrology, Braunschweig, GERMANY
Leopold, Tobias; PTB-Braunschweig, formerly; Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Satellitengeodäsie und Inertialsensorik, c/o Leibniz Universität Hannover, Hannover, GERMANY
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| Quelle/Jahr | Physical Review Applied: 17 (2022), 4, 1 - 8 |
| Artikelnummer | 044002 |
| ISSN | 2331-7019 (ONLINE) |
| DOI | |
| Verlag | College Park, Md.: American Physical Society (APS) |
| Zusammenfassung | We demonstrate the two-color cooling and trapping of alkaline-earth atoms in a grating magneto-optical trap (GMOT). The trap is formed by a single incident laser beam together with four secondary beams that are generated via diffraction from a nanostructured wafer. A grating structure for a GMOT operating with strontium atoms is optimized and fabricated. We trap 106 88Sr atoms on the 1S0 →1P1 transition at 461 nm and transfer 25% of these atoms to the second cooling stage on the narrower 1S0 →3 P1 intercombination transition at 689 nm, preparing a sample of 2.5 × 105 atoms at 5 μK. These results demonstrate the applicability of the GMOT technology in conjunction with two widely differing wavelengths and enable the continued miniaturization of alkaline-earth-based quantum technologies like optical atomic clocks. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |