Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Thomas Legero"'
Autor:
Jialiang Yu, Sebastian Häfner, Thomas Legero, Sofia Herbers, Daniele Nicolodi, Chun Yu Ma, Fritz Riehle, Uwe Sterr, Dhruv Kedar, John M. Robinson, Eric Oelker, Jun Ye
Publikováno v:
Physical Review X, Vol 13, Iss 4, p 041002 (2023)
Thermodynamically induced length fluctuations of high-reflectivity mirror coatings put a fundamental limit on sensitivity and stability of precision optical interferometers like gravitational-wave detectors and ultrastable lasers. The main contributi
Externí odkaz:
https://doaj.org/article/13d900125e514b71ac2ed52c83c3bb98
Autor:
Uwe Sterr, Fritz Riehle, Daniele Nicolodi, Thomas Legero, Jialiang Yu, Jun Ye, John Robinson, William Milner, Eric Oelker, Dhruv Kedar, Alexander Staron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e62b0ac653a873abd92a9cd108b78145
https://doi.org/10.26226/m.6275705f66d5dcf63a311750
https://doi.org/10.26226/m.6275705f66d5dcf63a311750
Autor:
John M, Robinson, Eric, Oelker, William R, Milner, Dhruv, Kedar, Wei, Zhang, Thomas, Legero, Dan G, Matei, Sebastian, Häfner, Fritz, Riehle, Uwe, Sterr, Jun, Ye
Publikováno v:
Optics letters. 46(3)
Mechanical loss of dielectric mirror coatings sets fundamental limits for both gravitational wave detectors and cavity-stabilized optical local oscillators for atomic clocks. Two approaches are used to determine the mechanical loss: ringdown measurem
Autor:
Roman Schwarz, Burghard Lipphardt, Uwe Sterr, Thomas Legero, A. Al-Masoudi, Erik Benkler, Stefan Weyers, J. Rahm, S. Dörscher, Ch. Lisdat
Publikováno v:
Physical Review Research. 2
This paper reports on measurements of the transition frequency of a strontium-87 lattice clock with low uncertainty, by using two local caesium fountain clocks.
Autor:
Thomas Legero, Thorsten Fuehrer, Tobias Feger, David W. Coutts, H. Van Winckel, Christian Schwab, Y. V. Gurevich, Andreas Seifahrt, Andreas Quirrenbach, Samuel Halverson, Dmytro Rogozin, Gert Raskin, Julian Stuermer
Publikováno v:
Advances in Optical Astronomical Instrumentation 2019.
Precise wavelength calibration is a critical issue for high-resolution spectroscopic observations. The ideal calibration source should be able to provide a very stable and dense grid of evenly distributed spectral lines of constant intensity. A new m
Autor:
Matthaus Halder, Uwe Sterr, Moustafa Abdel Hafiz, Christian Kürbis, Maurice Lessing, Robert Smol, Burghard Lipphardt, Jialiang Yu, Ronald Holzwarth, Nils Huntemann, Thomas Legero, Ahmad Bawamia, Bassem Arar, Andreas Wicht
Publikováno v:
Conference on Lasers and Electro-Optics.
A micro-integrated laser module has been developed for the deployment in a compact, transportable 171Yb+ optical clock. With this laser module, the clock laser system demonstrated a Modified Allan Deviation of less than 1.5×10-15 for 1 s ≤ 100 s w
Autor:
Roman Schwarz, Olivier Lopez, R. M. Godun, J E Calvert, Dan Xu, L De Sarlo, C. Baerentsen, R. Le Targat, Ian R. Hill, Thomas Legero, Jérôme Lodewyck, Nicolas Quintin, Erik Benkler, Guy Vallet, Benjamin Roberts, S. Dörscher, Helen S. Margolis, P. Delva, Alissa Silva, Uwe Sterr, Christine C. Guo, Ch. Lisdat, C. F. A. Baynham, Ekkehard Peik, A. Al-Masoudi, Nils Huntemann, Peter Wolf, Sébastien Bize, H. Alvarez-Martinez, Christian Sanner, Aurélien Hees, T. Waterholter, William B. Bowden, Philip Tuckey, Sebastian Koke, F. Ozimek, R. Lange, Gesine Grosche, Anne Amy-Klein, V. Cambier, Etienne Cantin, F. Meynadier, Chr. Tamm, Maxime Favier, Paul-Eric Pottie, Florian Frank, S. Bilicki, A. Kuhl, J. Kronjäger, Richard Hobson, Burghard Lipphardt, Marco Schioppo, E. A. Curtis, Patrick Gill
Publikováno v:
New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2020, 22 (9), pp.093010. ⟨10.1088/1367-2630/abaace⟩
HAL
New Journal of Physics, Institute of Physics: Open Access Journals, 2020, 22 (9), pp.093010. ⟨10.1088/1367-2630/abaace⟩
HAL
We search for transient variations of the fine structure constant using data from a European network of fiber-linked optical atomic clocks. By searching for coherent variations in the recorded clock frequency comparisons across the network, we signif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3a01e57b76b15f775464c101c2db556
https://hal.archives-ouvertes.fr/hal-02193937
https://hal.archives-ouvertes.fr/hal-02193937
Autor:
John Robinson, Thomas Legero, Dhruv Kedar, Jian Yao, Fritz Riehle, Judah Levine, Tara M. Fortier, Holly Leopardi, Tobias Bothwell, William R. Milner, Uwe Sterr, Jeff Sherman, Eric Oelker, D. G. Matei, Jun Ye, Colin Kennedy
We demonstrate a time scale based on a phase stable optical carrier that accumulates an estimated time error of $48\pm94$ ps over 34 days of operation. This all-optical time scale is formed with a cryogenic silicon cavity exhibiting improved long-ter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f2fdf3f8efb6f0ed6f452bb068f10d2
http://arxiv.org/abs/1907.03184
http://arxiv.org/abs/1907.03184
Publikováno v:
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Materials with ultralow thermal expansion and high dimensional stability find a variety of industrial and scientific applications ranging from astronomy and space applications [1,2] to fundamental research and optical atomic clockwork [3,4]. For room
Autor:
Thomas Legero, John Robinson, Jun Ye, Wei Zhang, William R. Milner, D. G. Matei, Fritz Riehle, Sebastian Häfner, Eric Oelker, Dhruv Kedar, Uwe Sterr
Publikováno v:
Optics Letters. 46:592
Mechanical loss of dielectric mirror coatings sets fundamental limits for both gravitational wave detectors and cavity-stabilized optical local oscillators for atomic clocks. Two approaches are used to determine the mechanical loss: ringdown measurem