Zugriffsnummer 55438
Dokumenttyp Zeitschriftenartikel
Peer Review mit Peer Review
Sprache Englisch
Titel Frequency Stability of 2.5 × 10-17 from a Si Cavity with AlGaAs Crystalline Mirrors
Autor(in); Institution
Lee, Dahyeon; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado, USA
Hu, Zoey Z.; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado, USA
Lewis, Ben; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado, USA
Aeppli, Alexander; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado, USA
Kim, Kyungtae; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado, USA
Yao, Zhibin; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado, USA
Legero, Thomas; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Nicolodi, Daniele; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Riehle, Fritz; 4, Optik, PTB-Braunschweig
Sterr, Uwe; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Ye, Jun; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado 80309-0390, USA
Quelle/Jahr Physical Review Letters: 136 (2026), 3, 1 - 8
Artikelnummer 033801
ISSN 0031-9007 (print) ; 1079-7114 (online)
DOI
Verlag College Park, Md.: American Physical Society (APS)
Zusammenfassung Developments in ultrastable lasers have fueled remarkable advances in optical frequency metrology and quantum science. A key ingredient in further improving laser frequency stability is the use of low-noise mirror materials such as AlGaAs crystalline coatings. However, excess noise observed with these coatings limits the performance of cryogenic silicon cavities with AlGaAs mirrors to similar levels achieved with conventional dielectric coatings. With a new pair of crystalline coated mirrors in a 6-cm-long cryogenic silicon cavity operated at 17 K, we demonstrate a clear advantage of crystalline coatings over dielectric coatings. The achieved fractional frequency stability of 2.5×10−17 at 10 s is four times better than expected for dielectric mirrors and corresponds to more than a tenfold reduction in the coating mechanical loss factor. We also combine two silicon cavities to demonstrate optical frequency averaging for enhanced stability. In addition, we present a long-term frequency drift record of four cryogenic silicon cavities measured over several years. These results open up realistic prospects for cavity-stabilized lasers with 10−18 fractional stability, as well as an all-optical timescale with continuously operating optical local oscillators.
Forschungsprojekt Funding for this work is provided by NSF No. QLCI OMA-2016244, V. Bush Fellowship, NSF No. PHY-2317149, and NIST. Authors at PTB acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy–EX-2123 QuantumFrontiers (Project No. 390837967) and by the Max Planck-RIKEN-PTB Center for Time, Constants and Fundamental Symmetries.
Förderinformationen (1) Förderername: Deutsche Forschungsgemeinschaft (DFG)
Förderer ID: 0000 0001 2096 9829
Förderer ID Typ: ISNI
Förderprogramm: Germany’s Excellence Strategy
Titel der Förderung: EX-2123 QuantumFrontiers
Förderungsnummer: 390837967

Zitierung

Lee, D., Hu, Z. Z., Lewis, B., Aeppli, A., Kim, K., Yao, Z., Legero, T., Nicolodi, D., Riehle, F., Sterr, U., & Ye, J. (2026). Frequency Stability of 2.5 × 10⁻¹⁷ from a Si Cavity with AlGaAs Crystalline Mirrors. Physical Review Letters, 136(3), 1–8. https://doi.org/10.1103/zgrm-cjbb

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