Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Clairon, André"'
Publikováno v:
Metrologia 51, 108 (2014)
We report the first contribution to the international atomic time (TAI) based on a secondary representation of the SI second. This work is done with the LNE-SYRTE FO2-Rb fountain frequency standard using the $^{87}$Rb ground state hyperfine transitio
Externí odkaz:
http://arxiv.org/abs/1401.7976
Publikováno v:
Applied Optics, Vol. 52, Issue 30, pp. 7342-7351 (2013)
We present the experimental realization of a laser system for ground to satellite optical Doppler ranging at the atmospheric turbulence limit. Such a system needs to display good frequency stability (a few parts in 10^{-14}) whilst allowing large and
Externí odkaz:
http://arxiv.org/abs/1305.3026
Autor:
Guéna, Jocelyne, Abgrall, Michel, Rovera, Daniele, Rosenbusch, Peter, Tobar, Michael E., Laurent, Philippe, Clairon, André, Bize, Sébastien
Publikováno v:
Phys. Rev. Lett. 109, 080801 (2012)
We report tests of local position invariance based on measurements of the ratio of the ground state hyperfine frequencies of 133Cs and 87Rb in laser-cooled atomic fountain clocks. Measurements extending over 14 years set a stringent limit to a possib
Externí odkaz:
http://arxiv.org/abs/1205.4235
Autor:
Guéna, Jocelyne, Abgrall, Michel, Rovera, Daniele, Laurent, Philippe, Chupin, Baptiste, Lours, Michel, Santarelli, Giorgio, Rosenbusch, Peter, Tobar, Michael E., Li, Ruoxin, Gibble, Kurt, Clairon, André, Bize, Sébastien
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 59, pages 391-420 (2012)
We give an overview of the work done with the Laboratoire National de M\'etrologie et d'Essais-Syst\`emes de R\'ef\'erence Temps-Espace (LNE-SYRTE) fountain ensemble during the last five years. After a description of the clock ensemble, comprising th
Externí odkaz:
http://arxiv.org/abs/1204.3621
Publikováno v:
Phys. Rev. Lett. 106, 130801 (2011)
We demonstrate agreement between measurements and ab initio calculations of the frequency shifts caused by distributed cavity phase variations in the microwave cavity of a primary atomic fountain clock. Experimental verification of the finite element
Externí odkaz:
http://arxiv.org/abs/1103.1633
We report on a fiber-stabilized agile laser with ultra-low frequency noise. The frequency noise power spectral density is comparable to that of an ultra-stable cavity stabilized laser at Fourier frequencies higher than 30 Hz. When it is chirped at a
Externí odkaz:
http://arxiv.org/abs/0911.5359
Autor:
Djerroud, Khelifa, Acef, Ouali, Clairon, Andre, Lemonde, Pierre, Man, Catherine N., Samain, Etienne, Wolf, Peter
We describe the realization of a 5 km free space coherent optical link through the turbulent atmosphere between a telescope and a ground target. We present the phase noise of the link, limited mainly by atmospheric turbulence and mechanical vibration
Externí odkaz:
http://arxiv.org/abs/0911.4506
Autor:
Gauguet, A., Mehlstäubler, Tanja, Lévèque, Thomas, Gouët, J. Le, Chaibi, Oualid, Canuel, B., Clairon, Andre, Santos, Franck Pereira Dos, Landragin, Arnaud
Publikováno v:
Physical Review A: Atomic, Molecular and Optical Physics 78 (2008) 043615
We study the influence of off-resonant two photon transitions on high precision measurements with atom interferometers based on stimulated Raman transitions. These resonances induce a two photon light shift on the resonant Raman condition. The impact
Externí odkaz:
http://arxiv.org/abs/0809.0149
Autor:
Merlet, Sébastien, Gouët, J. Le, Bodart, Quentin, Clairon, Andre, Landragin, Arnaud, Santos, Franck Pereira Dos, Rouchon, Pierre
Publikováno v:
Metrologia 46, 1 (2009) 87-94
In this paper, we show that an atom interferometer inertial sensor, when associated to the auxiliary measurement of external vibrations, can be operated beyond its linear range and still keep a high acceleration sensitivity. We propose and compare tw
Externí odkaz:
http://arxiv.org/abs/0806.0164
Autor:
Gouët, J. Le, Mehlstäubler, Tanja, Kim, Jaewan, Merlet, Sébastien, Clairon, Andre, Landragin, Arnaud, Santos, Franck Pereira Dos
Publikováno v:
Applied Physics B: Lasers and Optics 92, 2 (2008) 133-144
A detailed analysis of the most relevant sources of phase noise in an atomic interferometer is carried out, both theoretically and experimentally. Even a short interrogation time of 100 ms allows our cold atom gravimeter to reach an excellent short t
Externí odkaz:
http://arxiv.org/abs/0801.1270