Zobrazeno 1 - 10
of 411
pro vyhledávání: '"Grünert J"'
Autor:
Schneidmiller, E. A., Brinker, F., Decking, W., Froehlich, L., Guetg, M., Noelle, D., Scholz, M., Yurkov, M. V., Zagorodnov, I., Geloni, G., Gerasimova, N., Gruenert, J., Laksman, J., Liu, J., Karabekyan, S., Kujala, N., Maltezopoulos, Th., Petrov, I., Samoylova, L., Serkez, S., Sinn, H., Wolff-Fabris, F.
Publikováno v:
Published 19 March 2021 in Phys. Rev. Accel. Beams 24, 030701
Harmonic lasing provides an opportunity to extend the photon energy range of existing and planned X-ray FEL user facilities. Contrary to nonlinear harmonic generation, harmonic lasing can generate a much more intense, stable, and narrow-band FEL beam
Externí odkaz:
http://arxiv.org/abs/2104.00384
Publikováno v:
In Hand Surgery and Rehabilitation October 2020 39(5):442-447
Autor:
Bize, S., Laurent, P., Abgrall, M., Marion, H., Maksimovic, I., Cacciapuoti, L., Gruenert, J., Vian, C., Santos, F. Pereira dos, Rosenbusch, P., Lemonde, P., Santarelli, G., Wolf, P., Clairon, A., Luiten, A., Tobar, M., Salomon, C.
This paper describes advances in microwave frequency standards using laser-cooled atoms at BNM-SYRTE. First, recent improvements of the $^{133}$Cs and $^{87}$Rb atomic fountains are described. Thanks to the routine use of a cryogenic sapphire oscilla
Externí odkaz:
http://arxiv.org/abs/physics/0502117
Autor:
Fischer, M., Kolachevsky, N., Zimmermann, M., Holzwarth, R., Udem, Th., Haensch, T. W., Abgrall, M., Gruenert, J., Maksimovic, I., Bize, S., Marion, H., Santos, F. Pereira Dos, Lemonde, P., Santarelli, G., Laurent, P., Clairon, A., Salomon, C., Haas, M., Jentschura, U. D., Keitel, C. H.
Publikováno v:
Phys. Rev. Lett. 92, 230802 (2004)
We have remeasured the absolute $1S$-$2S$ transition frequency $\nu_{\rm {H}}$ in atomic hydrogen. A comparison with the result of the previous measurement performed in 1999 sets a limit of $(-29\pm 57)$ Hz for the drift of $\nu_{\rm {H}}$ with respe
Externí odkaz:
http://arxiv.org/abs/physics/0312086
Autor:
Fischer, M., Kolachevsky, N., Zimmermann, M., Holzwarth, R., Udem, Th., Hänsch, T. W., Abgrall, M., Grünert, J., Maksimovic, I., Bize, S., Marion, H., Santos, F. Pereira Dos, Lemonde, P., Santarelli, G., Laurent, P., Clairon, A., Salomon, C.
Publikováno v:
Lect.Notes Phys.648:209-227,2004
In 2003 we have measured the absolute frequency of the $(1S, F=1, m_F=\pm 1) \leftrightarrow (2S, F'=1, m_F'=\pm 1)$ two-photon transition in atomic hydrogen. We observed a variation of $(-29\pm 57)$ Hz over a 44 months interval separating this measu
Externí odkaz:
http://arxiv.org/abs/physics/0311128
Autor:
Bize, S., Wolf, P., Abgrall, M., Cacciapuoti, L., Clairon, A., Gruenert, J., Laurent, Ph., Lemonde, P., Maksimovic, I., Mandache, C., Marion, H., Santos, F. Pereira Dos, Rosenbusch, P., Santarelli, G., Sortais, Y., Vian, C., Zhang, S., Salomon, C., Luiten, A. N., Tobar, M. E.
Publikováno v:
Lect.Notes Phys.648:189-207,2004
We describe two experimental tests of the Equivalence Principle that are based on frequency measurements between precision oscillators and/or highly accurate atomic frequency standards. Based on comparisons between the hyperfine frequencies of 87Rb a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0310112
Autor:
Marion, H., Santos, F. Pereira Dos, Abgrall, M., Zhang, S., Sortais, Y., Bize, S., Maksimovic, I., Calonico, D., Gruenert, J., Mandache, C., Lemonde, P., Santarelli, G., Laurent, Ph., Clairon, A., Salomon, C.
Publikováno v:
Phys.Rev.Lett. 90 (2003) 150801
Over five years we have compared the hyperfine frequencies of 133Cs and 87Rb atoms in their electronic ground state using several laser cooled 133Cs and 87Rb atomic fountains with an accuracy of ~10^{-15}. These measurements set a stringent upper bou
Externí odkaz:
http://arxiv.org/abs/physics/0212112
Publikováno v:
J. Mod. Opt. 47, 2733-2740 (2000)
We propose an experimental implementation of matter wave amplification by optical pumping (MAO) with metastable calcium atoms. First experimental results indicate that pumping rates can be significantly higher than in previous experimental schemes an
Externí odkaz:
http://arxiv.org/abs/physics/0007069
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Autor:
Roubertie, A., Leuzzi, V., Pearl, P. L., Ezgü, F., Lupo, P., Rajbhandari, R., Sierra, J. R., Grünert, J., Giugliani, R.
Publikováno v:
Neuropediatrics; 2023 Supplement 1, Vol. 54, pS1-S32, 32p