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25 results on '"Mielec, N."'

1. Atom Interferometry with Top-Hat Laser Beams

Author

Mielec, N., Altorio, M., Sapam, R., Horville, D., Holleville, D., Sidorenkov, L. A., Landragin, A., and Geiger, R.

Subjects
Physics - Atomic Physics, Physics - Instrumentation and Detectors, Physics - Optics, Quantum Physics
Abstract

The uniformity of the intensity and phase of laser beams is crucial to high-performance atom interferometers. Inhomogeneities in the laser intensity profile cause contrast reductions and systematic effects in interferometers operated with atom sources at micro-Kelvin temperatures, and detrimental diffraction phase shifts in interferometers using large momentum transfer beam splitters. We report on the implementation of a so-called top-hat laser beam in a long-interrogation-time cold-atom interferometer to overcome the issue of the inhomogeneous laser intensity encountered when using Gaussian laser beams. We characterize the intensity and relative phase profiles of the top-hat beam and demonstrate its gain in atom-optics efficiency over a Gaussian beam, in agreement with numerical simulations. We discuss the application of top-hat beams to improve the performance of different architectures of atom interferometers., Comment: 4 pages plus references and Supplemental Material

Published
2018
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2. Studies of general relativity with quantum sensors

Author

Lefevre, G., Condon, G., Riou, I., Chichet, L., Essayeh, M., Rabault, M., Antoni-Micollier, L., Mielec, N., Holleville, D., Amand, L., Geiger, R., Landragin, A., Prevedelli, M., Barrett, B., Battelier, B., Bertoldi, A., Canuel, B., and Bouyer, P.

Subjects
Physics - Atomic Physics, General Relativity and Quantum Cosmology, Quantum Physics
Abstract

We present two projects aiming to probe key aspects of the theory of General Relativity with high-precision quantum sensors. These projects use cold-atom interferometry with the aim of measuring gravitational waves and testing the equivalence principle. To detect gravitational waves, a large multi-sensor demonstrator is currently under construction that will exploit correlations between three atom interferometers spread along a 200 m optical cavity. Similarly, a test of the weak equivalence principle is currently underway using a compact and mobile dual-species interferometer, which will serve as a prototype for future high-precision tests onboard an orbiting satellite. We present recent results and improvements related to both projects., Comment: 11 pages, 7 figures, to appear in "Proceedings of the 52nd Rencontres de Moriond on Gravitation"

Published
2017

3. Exploring gravity with the MIGA large scale atom interferometer

Author

Canuel, B., Bertoldi, A., Amand, L., di Pozzo, E. Borgo, Fang, B., Geiger, R., Gillot, J., Henry, S., Hinderer, J., Holleville, D., Lefèvre, G., Merzougui, M., Mielec, N., Monfret, T., Pelisson, S., Prevedelli, M., Reynaud, S., Riou, I., Rogister, Y., Rosat, S., Cormier, E., Landragin, A., Chaibi, W., Gaffet, S., and Bouyer, P.

Subjects
Physics - Atomic Physics
Abstract

We present an underground long baseline atom interferometer to study gravity at large scale. The hybrid atom-laser antenna will use several atom interferometers simultaneously interrogated by the resonant mode of an optical cavity. The instrument will be a demonstrator for gravitational wave detection in a frequency band (100 mHz - 1 Hz) not explored by classical ground and space-based observatories, and interesting for potential astrophysical sources. In the initial instrument configuration, standard atom interferometry techniques will be adopted, which will bring to a peak strain sensitivity of 2$\cdot 10^{-13}/\sqrt{\mathrm{Hz}}$ at 2 Hz. The experiment will be realized at the underground facility of the Laboratoire Souterrain \`a Bas Bruit (LSBB) in Rustrel--France, an exceptional site located away from major anthropogenic disturbances and showing very low background noise. In the following, we present the measurement principle of an in-cavity atom interferometer, derive signal extraction for Gravitational Wave measurement from the antenna and determine the expected strain sensitivity. We then detail the functioning of the different systems of the antenna and describe the properties of the installation site.

Published
2017
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4. A marginally stable optical resonator for enhanced atom interferometry

Author

Riou, I., Mielec, N., Lefèvre, G., Prevedelli, M., Landragin, A., Bouyer, P., Bertoldi, A., Geiger, R., and Canuel, B.

Subjects
Physics - Atomic Physics
Abstract

We propose a marginally stable optical resonator suitable for atom interferometry. The resonator geometry is based on two flat mirrors at the focal planes of a lens that produces the large beam waist required to coherently manipulate cold atomic ensembles. Optical gains of about 100 are achievable using optics with part-per-thousand losses. The resulting power build-up will allow for enhanced coherent manipulation of the atomic wavepackets such as large separation beamsplitters. We study the effect of longitudinal misalignments and assess the robustness of the resonator in terms of intensity and phase profiles of the intra-cavity field. We also study how to implement atom interferometry based on Large Momentum Transfer Bragg diffraction in such a cavity.

Published
2017
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5. MIGA: Combining laser and matter wave interferometry for mass distribution monitoring and advanced geodesy

Author

Canuel, B., Pelisson, S., Amand, L., Bertoldi, A., Cormier, E., Fang, B., Gaffet, S., Geiger, R., Harms, J., Holleville, D., Landragin, A., Lefèvre, G., Lhermite, J., Mielec, N., Prevedelli, M., Riou, I., and Bouyer, P.

Subjects
Physics - Atomic Physics, General Relativity and Quantum Cosmology, Physics - Geophysics, Physics - Instrumentation and Detectors
Abstract

The Matter-Wave laser Interferometer Gravitation Antenna, MIGA, will be a hybrid instrument composed of a network of atom interferometers horizontally aligned and interrogated by the resonant field of an optical cavity. This detector will provide measurements of sub Hertz variations of the gravitational strain tensor. MIGA will bring new methods for geophysics for the characterization of spatial and temporal variations of the local gravity field and will also be a demonstrator for future low frequency Gravitational Wave (GW) detections. MIGA will enable a better understanding of the coupling at low frequency between these different signals. The detector will be installed underground in Rustrel (FR), at the "Laboratoire Souterrain Bas Bruit" (LSBB), a facility with exceptionally low environmental noise and located far away from major sources of anthropogenic disturbances. We give in this paper an overview of the operating mode and status of the instrument before detailing simulations of the gravitational background noise at the MIGA installation site., Comment: Proceedings of SPIE Photonics Europe conference, Brussels (Belgium), 3-7 April 2016

Published
2016
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6. Exploring gravity with the MIGA large scale atom interferometer

Author

Canuel, B., Bertoldi, A., Amand, L., Pozzo di Borgo, E., Chantrait, T., Danquigny, C., Dovale Álvarez, M., Fang, B., Freise, A., Geiger, R., Gillot, J., Henry, S., Hinderer, J., Holleville, D., Junca, J., Lefèvre, G., Merzougui, M., Mielec, N., Monfret, T., Pelisson, S., Prevedelli, M., Reynaud, S., Riou, I., Rogister, Y., Rosat, S., Cormier, E., Landragin, A., Chaibi, W., Gaffet, S., and Bouyer, P.

Published
2018
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8. Atom interferometry with top-hat laser beams

Author

Mielec, N., primary, Altorio, M., additional, Sapam, R., additional, Horville, D., additional, Holleville, D., additional, Sidorenkov, L. A., additional, Landragin, A., additional, and Geiger, R., additional

Published
2018
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9. Atom Interferometry and Inertial Sensors

Author

Bordé, Christian J., Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Merlet, Sébastien, Pereira dos Santos, Franck, Alauze, Xavier, Altorio, Matteo, Caldani, Romain, Huang, Mengzi, Karcher, Romain, Langlois, Mehdi, Laudat, Théo, Martin, Jean-Marc, Mielec, N., Savoie, Denis, Ali-Khan, Murtaza, Bonnin, Alexis, Imanaliev, Almazbek, Mazzoni, Tomaso, Ranjita, Sapam, Trimeche, Azer, Chantrait, Thomas, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2017

10. Cold-atom inertial sensor without deadtime

Author

Fang, Bess, Savoie, Denis, Altorio, Matteo, Mielec, N., Dutta, Indranil, Sapam, Ranjita, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2017

11. Continuous cold-atom inertial sensor with 1 nrad.s -1 rotation stability

Author

Fang, Bess, Dutta, Indranil, Savoie, Denis, Altorio, Matteo, Mielec, N., Sapam, Ranjita, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

12. Continuous Cold Atom Gyroscope with 11 cm^2 Sagnac area at nrad/s stability

Author

Fang, Bess, Savoie, Denis, Dutta, Indranil, Mielec, N., Sapam, Ranjita, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

13. Benefits and challenges of high sensitivity atom interferometers in optical cavities

Author

Mielec, N., Riou, I., Fang, Bess, Holleville, David, Canuel, B., Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Photonique, Numérique et Nanosciences (LP2N), and Université de Bordeaux (UB)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

16. Cold-atom inertial sensor without deadtime

Author

Fang, B., primary, Savoie, D., additional, Mielec, N., additional, Dutta, I., additional, Venon, B., additional, Alzar, C. L. Garrido, additional, Geiger, R., additional, and Landragin, A., additional

Published
2017
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18. MIGA: combining laser and matter wave interferometry for mass distribution monitoring and advanced geodesy

Author

Canuel, B., additional, Pelisson, S., additional, Amand, L., additional, Bertoldi, A., additional, Cormier, E., additional, Fang, B., additional, Gaffet, S., additional, Geiger, R., additional, Harms, J., additional, Holleville, D., additional, Landragin, A., additional, Lefèvre, G., additional, Lhermite, J., additional, Mielec, N., additional, Prevedelli, M., additional, Riou, I., additional, and Bouyer, P., additional

Published
2016
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21. Exploring gravity with the MIGA large scale atom interferometer

Author

B. Canuel, A. Bertoldi, L. Amand, E. Pozzo di Borgo, T. Chantrait, C. Danquigny, M. Dovale Álvarez, B. Fang, A. Freise, R. Geiger, J. Gillot, S. Henry, J. Hinderer, D. Holleville, J. Junca, G. Lefèvre, M. Merzougui, N. Mielec, T. Monfret, S. Pelisson, M. Prevedelli, S. Reynaud, I. Riou, Y. Rogister, S. Rosat, E. Cormier, A. Landragin, W. Chaibi, S. Gaffet, P. Bouyer, Laboratoire Photonique, Numérique et Nanosciences (LP2N), Université de Bordeaux (UB)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU), Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), University of Oxford, Institut de physique du globe de Strasbourg (IPGS), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Géoazur (GEOAZUR 7329), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Dipartimento di Fisica e Astronomia [Bologna], Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire Kastler Brossel (LKB (Jussieu)), École normale supérieure - Paris (ENS-PSL), Centre d'Etudes Lasers Intenses et Applications (CELIA), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain à Bas Bruit (LSBB), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Avignon Université (AU)-Aix Marseille Université (AMU)-Observatoire de la Côte d'Azur, ANR-11-EQPX-0028, ANR-10-IDEX-03-02, ANR-10-LABX-48-01, FEDER PA0000321, EPSRC EP/M013294/1, ST/N000633/1, LP2N_A1, LP2N_A5, LP2N_G5, University of Oxford [Oxford], Université Nice Sophia Antipolis (... - 2019) (UNS), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Centre National de la Recherche Scientifique (CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Aix Marseille Université (AMU)-Avignon Université (AU)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA), Canuel, B., Bertoldi, A., Amand, L., Pozzo di Borgo, E., Chantrait, T., Danquigny, C., Dovale Álvarez, M., Fang, B., Freise, A., Geiger, R., Gillot, J., Henry, S., Hinderer, J., Holleville, D., Junca, J., Lefèvre, G., Merzougui, M., Mielec, N., Monfret, T., Pelisson, S., Prevedelli, M., Reynaud, S., Riou, I., Rogister, Y., Rosat, S., Cormier, E., Landragin, A., Chaibi, W., Gaffet, S., and Bouyer, P.

Subjects
Atom interferometer, Frequency band, Atomic Physics (physics.atom-ph), lcsh:Medicine, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, FOS: Physical sciences, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], interferométrie, 7. Clean energy, 01 natural sciences, Article, Physics - Atomic Physics, law.invention, Optics, law, 0103 physical sciences, medicine, Astronomical interferometer, Sensitivity (control systems), lcsh:Science, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS]Physics [physics], Multidisciplinary, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Gravitational wave, business.industry, lcsh:R, Astrophysics::Instrumentation and Methods for Astrophysics, modèle gravitationnel, Modélisation et simulation, Bruit, structure atomique, Optical cavity, Modeling and Simulation, lcsh:Q, atom interferometry, gravitational waves, Atomic physics, Antenna (radio), medicine.symptom, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

We present the MIGA experiment, an underground long baseline atom interferometer to study gravity at large scale. The hybrid atom-laser antenna will use several atom interferometers simultaneously interrogated by the resonant mode of an optical cavity. The instrument will be a demonstrator for gravitational wave detection in a frequency band (100 mHz–1 Hz) not explored by classical ground and space-based observatories, and interesting for potential astrophysical sources. In the initial instrument configuration, standard atom interferometry techniques will be adopted, which will bring to a peak strain sensitivity of $${\bf{2}}\cdot {\bf{1}}{{\bf{0}}}^{-{\bf{13}}}/\sqrt{{\bf{H}}{\bf{z}}}$$ 2 ⋅ 1 0 − 13 / H z at 2 Hz. This demonstrator will enable to study the techniques to push further the sensitivity for the future development of gravitational wave detectors based on large scale atom interferometers. The experiment will be realized at the underground facility of the Laboratoire Souterrain à Bas Bruit (LSBB) in Rustrel–France, an exceptional site located away from major anthropogenic disturbances and showing very low background noise. In the following, we present the measurement principle of an in-cavity atom interferometer, derive the method for Gravitational Wave signal extraction from the antenna and determine the expected strain sensitivity. We then detail the functioning of the different systems of the antenna and describe the properties of the installation site.

Published
2018

22. A marginally stable optical resonator for enhanced atom interferometry

Author

Arnaud Landragin, I. Riou, Benjamin Canuel, Marco Prevedelli, Philippe Bouyer, Remi Geiger, Nicolas Mielec, G. Lefèvre, Andrea Bertoldi, Laboratoire Photonique, Numérique et Nanosciences (LP2N), Université de Bordeaux (UB)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica e Astronomia [Bologna], Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire Souterrain à Bas Bruit (LSBB), Centre National de la Recherche Scientifique (CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Aix Marseille Université (AMU)-Avignon Université (AU)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Avignon Université (AU)-Aix Marseille Université (AMU)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Riou, I, Mielec, N, Lefèvre, G, Prevedelli, M, Landragin, A, Bouyer, P, Bertoldi, A, Geiger, R, and Canuel, B

Subjects
Atom interferometer, Atomic Physics (physics.atom-ph), Phase (waves), FOS: Physical sciences, Physics::Optics, 01 natural sciences, 7. Clean energy, cold atoms, bragg diffraction, optical resonators, atom interferometry, Physics - Atomic Physics, law.invention, 010309 optics, Resonator, Optics, law, 0103 physical sciences, Physics::Atomic Physics, 010306 general physics, Physics, [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph], business.industry, Momentum transfer, Bragg's law, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Lens (optics), Optical cavity, Physics::Accelerator Physics, Atomic physics, business, Beam (structure)
Abstract

International audience; We propose a marginally stable optical resonator suitable for atom interferometry. The resonator geometry is based on two flat mirrors at the focal planes of a lens that produces the large beam waist required to coherently manipulate cold atomic ensembles. Optical gains of about 100 are achievable using optics with part-per-thousand losses. The resulting power build-up will allow for enhanced coherent manipulation of the atomic wavepackets such as large separation beamsplitters. We study the effect of longitudinal misalignments and assess the robustness of the resonator in terms of intensity and phase profiles of the intra-cavity field. We also study how to implement atom interferometry based on Large Momentum Transfer Bragg diffraction in such a cavity.

Published
2017

23. MIGA: combining laser and matter wave interferometry for mass distribution monitoring and advanced geodesy

Author

Eric Cormier, N. Mielec, Jan Harms, Remi Geiger, Andrea Bertoldi, Philippe Bouyer, D. Holleville, S. Pelisson, G. Lefèvre, L. Amand, Marco Prevedelli, I. Riou, Arnaud Landragin, Bess Fang, B. Canuel, Stéphane Gaffet, Jérôme Lhermite, MIGA - consortium, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze (INFN, Sezione di Firenze), Istituto Nazionale di Fisica Nucleare (INFN), Université de Bologne, j. Stuhler, A. J. Shields, Canuel, B., Pelisson, S., Amand, L., Bertoldi, A., Cormier, Eric, Fang, B., Gaffet, S., Geiger, R., Harms, J., Holleville, D., Landragin, A., Lefèvre, G., Lhermite, J., Mielec, N., Prevedelli, M., Riou, I., Bouyer, P., Laboratoire Souterrain à Bas Bruit (LSBB), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Avignon Université (AU)-Aix Marseille Université (AMU)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Aix Marseille Université (AMU)-Avignon Université (AU)-Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)

Subjects
Atom interferometer, Physics - Instrumentation and Detectors, Atomic Physics (physics.atom-ph), FOS: Physical sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, 7. Clean energy, General Relativity and Quantum Cosmology, Physics - Atomic Physics, Physics - Geophysics, Background noise, Optics, 0103 physical sciences, medicine, Astronomical interferometer, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Gravitational wave, business.industry, Lasers, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), Geophysics (physics.geo-ph), Interferometry, Bruit, medicine.symptom, Antenna (radio), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], business, Geodesy
Abstract

The Matter-Wave laser Interferometer Gravitation Antenna, MIGA, will be a hybrid instrument composed of a network of atom interferometers horizontally aligned and interrogated by the resonant field of an optical cavity. This detector will provide measurements of sub Hertz variations of the gravitational strain tensor. MIGA will bring new methods for geophysics for the characterization of spatial and temporal variations of the local gravity field and will also be a demonstrator for future low frequency Gravitational Wave (GW) detections. MIGA will enable a better understanding of the coupling at low frequency between these different signals. The detector will be installed underground in Rustrel (FR), at the "Laboratoire Souterrain Bas Bruit" (LSBB), a facility with exceptionally low environmental noise and located far away from major sources of anthropogenic disturbances. We give in this paper an overview of the operating mode and status of the instrument before detailing simulations of the gravitational background noise at the MIGA installation site., Proceedings of SPIE Photonics Europe conference, Brussels (Belgium), 3-7 April 2016

Published
2016

24. Metasurfaces for Far-Field Radiation Pattern Correction of Antennas under Dielectric Seamed-Radomes.

Author

Cacocciola R, Ratni B, Mielec N, Mimoun E, and Burokur SN

Abstract

A high-index dielectric radome seam is camouflaged with respect to a low-index dielectric radome panel by tuning the seam with carefully engineered metasurfaces. A transmission-line approach is used to model the metasurface-tuned seam and analytically retrieve the corresponding surface impedance, from which the unit-cell design is then tailored. Full-wave simulations and microwave antenna measurements performed on a proof-of-concept prototype validate the undesired scattering suppression effect in the case of normally and obliquely incident transverse electric and transverse magnetic wave illuminations. Robustness of the proposed solution to fabrication tolerances is also reported. The study presents metasurface-tuning as an easily implementable, frequency adjustable, and polarization insensitive solution to reduce the scattering of dielectric mechanical seams and improve the overall transparency performance of radome structures.

Published
2022
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25. Degenerate optical resonator for the enhancement of large laser beams.

Author

Mielec N, Sapam R, Poulain C, Landragin A, Bertoldi A, Bouyer P, Canuel B, and Geiger R

Abstract

There are several applications for enhancement cavities where a beam of large size (several millimeters) resonates, in particular in atomic physics. However, reaching large beam waists in a compact geometry (less than a meter long) typically brings the resonator close to the degeneracy limit. Here we experimentally study a degenerate optical cavity, 44-cm long and consisting of two flat mirrors placed in the focal planes of a lens, in a regime of intermediate finesse (∼150). We study the impact of the longitudinal misalignement on the optical gain, for different input beam waists up to 5.6 mm, and find data consistent with the prediction of a model based on ABCD propagation of Gaussian beams. We reach an optical gain of 26 for a waist of 1.4 mm, which can have an impact on several applications, in particular atom interferometry. We numerically investigate the optical gain reduction for large beam waists using the angular spectrum method to consider the effects of optical aberrations, which play an important role in such a degenerate cavity. Our calculations quantitatively reproduce the experimental data and will provide a key tool for designing enhancement cavities close to the degeneracy limit. As an illustration, we discuss the application of this resonator geometry to the enhancement of laser beams with top-hat intensity profiles.

Published
2020
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