Improving the phase response of an atom interferometer by means of temporal pulse shaping

Autor: Bess Fang, Nicolas Mielec, Denis Savoie, Matteo Altorio, Arnaud Landragin, Remi Geiger

Publikováno v: New Journal of Physics, Vol 20, Iss 2, p 023020 (2018)

We study theoretically and experimentally the influence of temporally shaping the light pulses in an atom interferometer, with a focus on the phase response of the interferometer. We show that smooth light pulse shapes allow rejecting high frequency

Externí odkaz: https://doaj.org/article/1112a2d2f5b5490faa07f3912a04df4a

Un orologio solare miniaturistico in avorio da un contesto residenziale tardo-repubblicano di Pisa

Autor: Emanuele Taccola, Filippo Battistoni, Jerome Bonnin, Denis Savoie

Publikováno v: Journal of Roman Archaeology (JRA)
Journal of Roman Archaeology (JRA), 2021, 34 (1), pp.75-97. ⟨10.1017/s1047759421000301⟩

International audience; The object presented in this contribution adds to the relatively small corpus of Greco-Roman miniature sundials. It is a conical sundial made of elephant ivory, found in secondary deposition within an Augustan-age residential

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed846497076f5b0ebe4f075fb792578e
http://hdl.handle.net/11568/1082296

Usages astronomiques du gnomon au cours des siècles

Autor: Denis Savoie

Publikováno v: Comptes Rendus Géoscience
Comptes Rendus Géoscience, Elsevier, 2018, 350 (8), pp.487-497. ⟨10.1016/j.crte.2018.08.001⟩

International audience; Gnomon is the oldest astronomic instrument, as its use is attested as early as the second millenium B.C. It allowed the ancients to ascertain the Earth's main basic parameters, such as its movement relatively to the Sun. The u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6de36a4a919dee9690ad1bebd2ac135f
https://doi.org/10.1016/j.crte.2018.08.001

Interleaved Matter-Wave Gyroscope with 3 × 10−10 rad.s−1 Stability

Autor: Arnaud Landragin, M. Altorio, Denis Savoie, Remi Geiger, Bess Fang

Publikováno v: 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018).

We present a matter-wave gyroscope with 11 cm2Sagnac area operating without dead times and at a sampling frequency of 3.75 Hz. This is achieved by interleaving the atom laser-cooling step and the interrogation of the atoms. We demonstrate a record sh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04db8b668f1677f2027792ffac136e19
https://doi.org/10.1109/cpem.2018.8501207

Les disques de Berteaucourt-les-Dames et de Mérida : méridiennes portatives ou indicateurs de latitude ?

Autor: Denis Savoie, Marc Goutaudier

Publikováno v: Revue du Nord
Revue du Nord, 2012, 398 (5), pp.115. ⟨10.3917/rdn.398.0115⟩
Revue du Nord, Université de Lille, 2012, 398 (5), pp.115. ⟨10.3917/rdn.398.0115⟩

L’etude gnomonique suivante concerne deux disques de bronze romains datant des premiers siecles de notre ere, ou sont graves sur une face des noms de villes de l’Empire avec leur latitude, accompagnes d’un reseau de courbes formant un abaque. E

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90194ec46be81e94f1b83256a78cb502
https://doi.org/10.3917/rdn.398.0115