Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Francois-Xavier Esnault"'
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 66:247-250
The phase noise of surface acoustic wave resonators is explored by a passive measurement system based on the carrier suppression technique. The measurements are focused on 2.44-GHz quartz crystal resonators. These resonators are characterized in term
Autor:
Sascha W. Schediwy, Darlene D’Mello, David R. Gozzard, Charles Gravestock, Francois-Xavier Esnault, Benjamin P. Dix-Matthews, Skevos F. E. Karpathakis, Etienne Savalle, Peter Wolf, Thomas Leveque, Michael E. Tobar
Publikováno v:
Nature Communications
Nature Communications, Nature Publishing Group, 2021, 12 (1), pp.515. ⟨10.1038/s41467-020-20591-5⟩
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Nature Communications, Nature Publishing Group, 2021, 12 (1), pp.515. ⟨10.1038/s41467-020-20591-5⟩
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Timescale comparison between optical atomic clocks over ground-to-space and terrestrial free-space laser links will have enormous benefits for fundamental and applied science, from measurements of fundamental constants and searches for dark matter, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f58c51be974f1a315b0f74e96bfa84f
https://hal.archives-ouvertes.fr/hal-02922208/file/s41467-020-20591-5.pdf
https://hal.archives-ouvertes.fr/hal-02922208/file/s41467-020-20591-5.pdf
Autor:
Christophe Le Poncin-Lafitte, P. Delva, C. Guerlin, Christophe Salomon, Wolfgang Schaefer, Thomas Niedermaier, Luigi Cacciapuoti, Didier Massonnet, Ulrich Schreiber, Theo Schwall, Ivan Prochazka, F. Meynadier, Marc Lilley, Omar Sy, Achim Helm, Rudolf Much, P. Laurent, Shuo Liu, Anja Schlicht, Michele Armano, Pascal Rochat, Jacques Pittet, Didier Goujon, Johannes Kehrer, Peter Wolf, Francois Xavier Esnault, Silvio Koller, Marc Peter Hess, Etienne Savalle
Publikováno v:
The European Physical Journal D. 74
Atomic Clock Ensemble in Space (ACES) is a mission designed to test Einstein’s theory of General Relativity from the International Space Station (ISS). A primary frequency standard based on laser cooled caesium atoms (PHARAO) and an active H-maser
Publikováno v:
Review of Scientific Instruments
Review of Scientific Instruments, 2020, 91 (8), pp.085104 (8)
Review of Scientific Instruments, 2020, 91 (8), pp.085104 (8)
International audience; A carrier suppression system is implemented in order to measure the phase noise of acoustic resonators that have a low motional resistance. A special adapters’ system using transformers is proposed to improve the loaded qual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e18e72b6c227e2138a29ded8c4282fa
https://hal.archives-ouvertes.fr/hal-03053109/document
https://hal.archives-ouvertes.fr/hal-03053109/document
Autor:
M. Lours, J. Gillot, David Holleville, Francois-Xavier Esnault, P. E. Pottie, O. Acef, Thomas Leveque, Peter Wolf, H. Alvarez-Martinez, J. Barbarat, Philip Tuckey, R. Le Targat
Publikováno v:
International Conference on Space Optics-ICSO 2018
International Conference on Space Optics-ICSO 2018, Oct 2018, Chania, France. pp.28, ⟨10.1117/12.2535948⟩
International Conference on Space Optics-ICSO 2018, Oct 2018, Chania, France. pp.28, ⟨10.1117/12.2535948⟩
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7758657abea09b27baab7558bf4bce10
https://hal.archives-ouvertes.fr/hal-03129878
https://hal.archives-ouvertes.fr/hal-03129878
Autor:
Fabrice Sthal, Gianluca Piazza, Jeronimo Segovia-Fernandez, Etienne Vaillant, Valerie Soumann, Lilia Arapan, Francois-Xavier Esnault, Philippe Abbé, Gilles Cibiel, J. Imbaud
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2018, 65 (10), pp.1943-1950
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2018, 65 (10), pp.1943-1950
In this paper, the phase noise of aluminum nitride (AlN) contour-mode resonators is investigated using a passive measurement system with carrier suppression. The purpose is to make careful measurements of the performance of AlN resonators in order to
Autor:
Fabrice Sthal, J. Imbaud, E. Vaillant, Gilles Cibiel, Yannick Gruson, Francois-Xavier Esnault
Publikováno v:
2018 IEEE International Frequency Control Symposium (IFCS).
In this paper, a frequency regenerative divider using double closed loops is presented. The principle of this custom built regenerative divider by N is explained. This type of divider as the advantage to increase the division ratio without adding a m
Autor:
Fabrice Sthal, E. Vaillant, A. Pokharel, Gilles Cibiel, J.J. Boy, Francois-Xavier Esnault, J. Imbaud
Publikováno v:
European Frequency and Time Forum
European Frequency and Time Forum, Apr 2018, Turin, Italy
European Frequency and Time Forum, Apr 2018, Turin, Italy
International audience; In this paper, the intrinsic study on Langatate (LGT) crystal resonators has been carried out at 10 MHz resonant frequency. Among the crystals belonging to the Langasite family, the Langatate (La 3 Ga 5.5 Ta 0.5 O 14 ) also ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48e180e3bdf68c52a9da1d4e956229b1
https://hal.archives-ouvertes.fr/hal-02380830
https://hal.archives-ouvertes.fr/hal-02380830
Autor:
Michel Abgrall, V. Bernard, C. Escande, Fabrice Buffe, Benoit Faure, D. Rovera, Francois-Xavier Esnault, Christophe Salomon, C. Delaroche, A. Ratsimandresy, T. Bomer, Ph. Larivière, Thomas Leveque, Stéphane Thomin, Ph. Laurent, O. Grosjean, Patrizia Torresi, Didier Massonnet, I. Moric, S. Béraud, Ph. Gasc
Publikováno v:
International Conference on Space Optics — ICSO 2014.
PHARAO (Projet d'Horloge Atomique par Refroidissement d'Atomes en Orbite), which has been developed by CNES, is the first primary frequency standard specially designed for operation in space. PHARAO is the main instrument of the ESA mission ACES (Ato
Autor:
Fabrice Sthal, Francois-Xavier Esnault, Vincent Giordano, Enrico Rubiola, J. Imbaud, Christophe Fluhr, Gilles Cibiel, E. Vaillant, Yannick Gruson, Serge Grop
Publikováno v:
European Frequency and Time Forum
European Frequency and Time Forum, Apr 2016, York, United Kingdom
European Frequency and Time Forum, Apr 2016, York, United Kingdom
International audience; In this paper we present several configurations enabling to obtain a low-noise 5 MHz signal from the 100 MHz delivered by the frequency synthesis of a Cryogenic Sapphire Oscillator. The residual single-sideband phase noise of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4ad54cbb1187af791166cf1bc54ff8f
https://hal.archives-ouvertes.fr/hal-03053116/file/5f7c0827-3c17-4491-bf07-abdd7823d6b3-author.pdf
https://hal.archives-ouvertes.fr/hal-03053116/file/5f7c0827-3c17-4491-bf07-abdd7823d6b3-author.pdf