Search Results - "Guena, Jocelyne"

New Measurement of the 1S-3S Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle by Fleurbaey, Hélène, Galtier, Sandrine, Thomas, Simon, Bonnaud, Marie, Julien, Lucile, Biraben, François, Nez, François, Abgrall, Michel, Guéna, Jocelyne

“…We present a new measurement of the 1S-3S two-photon transition frequency of hydrogen, realized with a continuous-wave excitation laser at 205 nm on a…”
Get full text

Evaluation of Doppler shifts to improve the accuracy of primary atomic fountain clocks by Guéna, Jocelyne, Li, Ruoxin, Gibble, Kurt, Bize, Sébastien, Clairon, André

“…We demonstrate agreement between measurements and ab initio calculations of the frequency shifts caused by distributed cavity phase variations in the microwave…”
Get full text

Progress in atomic fountains at LNE-SYRTE by Guena, J., Abgrall, M., Rovera, D., Laurent, P., Chupin, B., Lours, M., Santarelli, G., Rosenbusch, P., Tobar, M. E., Ruoxin Li, Gibble, K., Clairon, A., Bize, S.

“…We give an overview of the work done with the Laboratoire National de Metrologie et d'Essais-Systemes de Reference Temps-Espace (LNE-SYRTE) fountain ensemble…”
Get full text

Demonstration of a dual alkali Rb/Cs fountain clock by Guena, Jocelyne, Rosenbusch, Peter, Laurent, Philippe, Abgrall, Michel, Rovera, Daniele, Santarelli, Giorgio, Tobar, Michael E., Bize, Sebastien, Clairon, Andre

“…We report the operation of a dual Rb/Cs atomic fountain clock. 133 Cs and 87 Rb atoms are cooled, launched, and detected simultaneously in LNE-SYRTE's FO2…”
Get full text

High-Stability Comparison of Atomic Fountains Using Two Different Cryogenic Oscillators by Abgrall, M., Guena, J., Lours, M., Santarelli, G., Tobar, M. E., Bize, S., Grop, S., Dubois, B., Fluhr, C., Giordano, V.

“…We present a detailed characterization of two atomic clock interrogation systems based on two different cryogenic sapphire oscillators operated simultaneously…”
Get full text

Switching atomic fountain clock microwave interrogation signal and high-resolution phase measurements by Santarelli, G., Governatori, G., Chambon, D., Lours, M., Rosenbusch, P., Guena, J., Chapelet, F., Bize, S., Tobar, M., Laurent, P., Potier, T., Clairon, A.

“…This paper focuses on the development of tools aiming to solve several problems related to the microwave interrogation signal in atomic fountains. We first…”
Get full text

Carrier-phase two-way satellite frequency transfer between LNE-SYRTE and PTB by Fujieda, Miho, Takiguchi, Hiroshi, Achkar, Joseph, Abgrall, Michel, Guena, Jocelyne, Riedel, Franziska, Benkler, Erik, Weyers, Stefan, Piester, Dirk

“…We performed a carrier-phase two-way satellite frequency transfer (TWCP) experiment between LNE-SYRTE and PTB for several days in September 2015. Different…”
Get full text

New Measurement of the 1 S − 3 S Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle by Fleurbaey, Hélène, Galtier, Sandrine, Thomas, Simon, Bonnaud, Marie, Julien, Lucile, Biraben, François, Nez, François, Abgrall, Michel, Guéna, Jocelyne

Get full text

Ultralow noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock by Millo, J., Abgrall, M., Lours, M., English, E. M. L., Jiang, H., Guéna, J., Clairon, A., Tobar, M. E., Bize, S., Le Coq, Y., Santarelli, G.

“…We demonstrate the use of a fiber-based femtosecond laser locked onto an ultrastable optical cavity to generate a low-noise microwave reference signal…”
Get full text

A Neutral Atom Frequency Reference in the Deep Ultraviolet with FractionalUncertainty = 5.7×10-15 by Mcferran, John J., Yi, Lin, Mejri, Sinda, Di Manno, Sylvain, Zhang, Wei, Guéna, Jocelyne, Le Coq, Yann, Bize, Sébastien

“…We present an assessment of the (6s 2 ) S01(6s6p)P03 clock transition frequency in Hg199 with an uncertainty reduction of nearly 3 orders of magnitude and…”
Get full text

Design Details of FOCS-2, an Improved Continuous Cesium Fountain Frequency Standard by Fuzesi, Ferenc, Plimmer, Mark D., Dudle, Gregor, Guena, Jocelyne, Thomann, Pierre

“…We report on the design, construction and current status of FOCS-2, the second continuous fountain microwave cesium frequency standard after FOCS-1. Both…”
Get full text

Invited Review: Progress in atomic fountains at LNE-SYRTE by Guéna, Jocelyne, Abgrall, Michel, Rovera, Daniele, Laurent, Philippe, Chupin, Baptiste, Lours, Michel, Santarelli, Giorgio, Rosenbusch, Peter, Tobar, Michael E., Li, R., Gibble, Kurt, Clairon, André, Bize, Sébastien

“…We give an overview of the work done with the Laboratoire National de Metrologie et d'Essais-Systemes de Reference Temps-Espace (LNE-SYRTE) fountain ensemble…”
Get full text

Pump-probe measurement of atomic parity violation in caesium with a precision of 2.6 by Lintz, Michel, Guéna, Jocelyne, Bouchiat, Marie-Anne

“…We present the atomic parity violation measurements made in Cs vapour using a pump-probe scheme. After pulsed excitation of the 6S-7S forbidden transition in…”
Get full text

Experimental demonstration of intermodulation effects in a continuous cesium fountain microwave frequency standard by Guena, J., Dudle, G., Plimmer, M.D., Thomann, P.

“…The short-term stability of passive atomic frequency standards, particularly ones operated sequentially, is often limited by local oscillator noise via…”
Get full text

New manifestation of atomic parity violation in cesium: a chiral optical gain induced by linearly polarized 6S-7S excitation by Guéna, J, Chauvat, D, Jacquier, Ph, Jahier, E, Lintz, M, Sanguinetti, S, Wasan, A, Bouchiat, M A, Papoyan, A V, Sarkisyan, D

“…We have detected, by using stimulated emission, an atomic parity violation (APV) in the form of a chiral optical gain of a cesium vapor on the 7S-6P(3/2)…”
Get full text

Performances of UTC(OP) based on LNE-SYRTE atomic fountains by Rovera, G. D., Abgrall, M., Bize, S., Chupin, B., Guena, J., Laurent, Ph, Rosenbusch, P., Uhrich, P.

“…We present the current realization of UTC(OP) generated at LNE-SYRTE, Observatoire de Paris (OP), Paris, France, which is also the source of French legal time…”
Get full text

Demonstration of an optical polarization magnifier with low birefringence by Lintz, Michel, Guena, Jocelyne, Bouchiat, Marie-Anne, Chauvat, Dominique

“…Review of Scientific Instruments 76 (2005) 043102 In any polarimetric measurement technique, enhancing the laser polarization change of a laser beam before it…”
Get full text

New feature in selective reflection with a highly parallel window: phase-tunable homodyne detection of the radiated atomic field by PAPOYAN, A. V, GRIGORYAN, G. G, SHMAVONYAN, S. V, SARKISYAN, D, GUENA, J, LINTZ, M, BOUCHIAT, M. A

“…Selective reflection (SR) of light from a cesium vapor-sapphire interface close to the D-2 resonance line has been studied by use of a sapphire window with…”
Get full text

New measurement of the $1S-3S$ transition frequency of hydrogen: contribution to the proton charge radius puzzle by Fleurbaey, Hélène, Galtier, Sandrine, Thomas, Simon, Bonnaud, Marie, Julien, Lucile, Biraben, François, Nez, François, Abgrall, Michel, Guéna, Jocelyne

“…Phys. Rev. Lett. 120, 183001 (2018) We present a new measurement of the $1S-3S$ two-photon transition frequency of hydrogen, realized with a continuous-wave…”
Get full text

Temperature-tunable sapphire windows for reflection loss-free operation of vapor cells by Jahier, E., Guéna, J., Jacquier, Ph, Lintz, M., Papoyan, A.V., Bouchiat, M.A.

“…We have developed a 'temperature-tunable cell', for which the reflected intensity of a laser beam on a chosen window can be reduced below 0.5% of the incident…”
Get full text