| Zugriffsnummer | 28657 |
| Dokumenttyp | Buchartikel |
| Sprache | Englisch |
| Titel | Towards Neutral-atom Space Optical Clocks (SOC2): Development of high-performance transportable and breadboard optical clocks and advanced subsystems |
| Autor(in); Institution |
Schiller, Stephan; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Görlitz, Axel; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Nevsky, Alexander Yu.; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Alighanbari, Soroosh; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Vasilyev, Sergey; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Abou-Jaoudeh, Charmel; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Mura, Gregor; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Franzen, Tobias; Heinrich-Heine Universität Düsseldorf, Düsseldorf, GERMANY
Sterr, Uwe; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Falke, Stephan; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Lisdat, Christian; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Rasel, Ernst-Maria; Leibniz-Universität Hannover, Hannover, GERMANY
Kulosa, André; Leibniz-Universität Hannover, Hannover, GERMANY
Bize, Sebastien; Observatoire de Paris, FRANCE
Lodewyck, Jérome; Observatoire de Paris, FRANCE
Tino, Guglielmo M; Università di Firenze and LENS, ITALY
Poli, Nicola; Università di Firenze and LENS, ITALY
Schioppo, Marco; Università di Firenze and LENS, ITALY
Bongs, Kai; University of Birmingham, Birmingham, UK
Singh, Yesphal; University of Birmingham, Birmingham, UK
Gill, Patrick; National Physical Laboratory (NPL), Teddington, UK
Barwook, Geoffrey; National Physical Laboratory (NPL), Teddington, UK
Ovchinnikov, Yuri; National Physical Laboratory (NPL), Teddington, UK
Stuhler, Jürgen; TOPTICA, Photonics AG, GERMANY
Kaenders, Wilhelm; TOPTICA, Photonics AG, GERMANY
Braxmaier, Claus; EADS Astrium, Friedrichshafen, GERMANY
Holzwarth, Ronald; Menlo Systems GmbH, GERMANY
Donati, Alessandro; Kayser Italia S.r.l., ITALY
Lecomte, Steve; Centre Suisse d’Electronique et de Microtechnique SA, SWITZERLAND
Calonico, Davide; Istituto Nazionale di Ricerca Metrologica, Torino, ITALY
Levi, Filippo; Istituto Nazionale di Ricerca Metrologica, Torino, ITALY
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| Quelle/Jahr | Let's embrace space: 2 (2012), 452 - 463 |
| ISBN | 978-92-79-22207-8 |
| DOI | |
| URL | |
| Verlag | Luxembourg: Publications Office of the European Union |
| Zusammenfassung | The use of ultra-precise optical clocks in space (‘master clocks’) will allow for a range of new applications covering the fields of fundamental physics (tests of Einstein’s theory of General Relativity, time and frequency metrology by means of the comparison of distant terrestrial clocks), geophysics (mapping of the gravitational potential of Earth), and astronomy (providing local oscillators for radio ranging and interferometry in space). Within the ELIPS-3 programme of ESA, the "Space Optical Clocks" (SOC) project aims to install and to operate an optical lattice clock on the International Space Station (ISS) towards the end of this decade, as a natural follow-on to the Atomic Clock Ensemble in Space (ACES) mission (which is based on a cesium microwave clock), improving its performance by at least one order of magnitude. The payload is planned to include an optical lattice clock, as well as a frequency comb, a microwave link, and an optical link for comparisons of the ISS clock with ground clocks located in several countries and continents. Undertaking a necessary step towards optical clocks in space, the EU-FP7-SPACE-2010-1 project no 263500 (SOC2) (2011-15) will develop two "engineering confidence", accurate transportable lattice optical clock demonstrators having relative frequency instability below 1×10-15 at 1 s integration time and relative inaccuracy below 5×10-17. This goal performance is about 2 and 1 orders better in instability and inaccuracy, respectively, than today’s best transportable clocks. The devices will be based on trapped neutral ytterbium and strontium atoms. One device will be a breadboard. The two systems will be validated in laboratory environments and their performance will be established by comparison with laboratory optical clocks and primary frequency standards. In order to achieve the goals, SOC2 will develop the necessary laser systems - adapted in terms of power, linewidth, frequency stability, longterm reliability, and accuracy. Novel solutions with reduced space, power and mass requirements will be implemented. Some of the laser systems will be developed towards particularly high compactness and robustness levels. Also, the project will validate crucial laser components in relevant environments. This paper will give an overview of the project and of the results achieved during the first year. |
Zitierung
Schiller, S., Görlitz, A., Nevsky, A. Y., Alighanbari, S., Vasilyev, S., Abou-Jaoudeh, C., Mura, G., Franzen, T., Sterr, U., Falke, S., Lisdat, C., Rasel, E.-M., Kulosa, A., Bize, S., Lodewyck, J., Tino, G. M., Poli, N., Schioppo, M., Bongs, K., Singh, Y., Gill, P., Barwook, G., Ovchinnikov, Y., Stuhler, J., Kaenders, W., Braxmaier, C., Holzwarth, R., Donati, A., Lecomte, S., Calonico, D., & Levi, F. (2012). Towards Neutral-atom Space Optical Clocks (SOC2): Development of high-performance transportable and breadboard optical clocks and advanced subsystems. In Let's embrace space (pp. 452–463). Luxembourg: Publications Office of the European Union. https://doi.org/10.2769/31208