Joseph Junca
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View article: Wavefront Mapping for Absolute Atom Interferometry
Wavefront Mapping for Absolute Atom Interferometry Open
Wavefront distortions are a leading source of systematic uncertainty in light-pulse atom interferom- etry, limiting absolute measurements of gravitational acceleration at the 30 nm/s$^2$ level. Here, we demonstrate in situ spatially resolv…
View article: Multiphoton Atom Interferometry via Cavity-Enhanced Bragg Diffraction
Multiphoton Atom Interferometry via Cavity-Enhanced Bragg Diffraction Open
We present a novel atom interferometer configuration that combines large momentum transfer with the enhancement of an optical resonator for the purpose of measuring gravitational strain in the horizontal directions. Using Bragg diffraction…
View article: Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA)
Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA) Open
The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise un…
View article: Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA)
Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA) Open
The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise un…
View article: Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA)
Cold-atom sources for the Matter-wave laser Interferometric Gravitation Antenna (MIGA) Open
The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise un…
View article: A gravity antenna based on quantum technologies: MIGA
A gravity antenna based on quantum technologies: MIGA Open
We report the realization of a large scale gravity antenna based on matter-wave interferometry, the MIGA project. This experiment consists in an array of cold Rb sources correlated by a 150 m long optical cavity. MIGA is in construction at…
View article: Reaching ultra-high vacuum for a large vacuum vessel in an underground environment
Reaching ultra-high vacuum for a large vacuum vessel in an underground environment Open
Located far from anthropical disturbances and with low seismic and magnetic background noise profiles, the LSBB facility is the ideal location for a new hybrid detector for the study of space-time strain. The MIGA infrastructure [1], utili…
View article: A fibered laser system for the MIGA large scale atom interferometer
A fibered laser system for the MIGA large scale atom interferometer Open
We describe the realization and characterization of a compact, autonomous fiber laser system that produces the optical frequencies required for laser cooling, trapping, manipulation, and detection of $^{87}$Rb atoms - a typical atomic spec…
View article: Characterizing Earth gravity field fluctuations with the MIGA antenna for future gravitational wave detectors
Characterizing Earth gravity field fluctuations with the MIGA antenna for future gravitational wave detectors Open
Fluctuations of the earth's gravity field are a major noise source for ground-based experiments investigating general relativity phenomena such as Gravitational Waves (GWs). Mass density variations caused by local seismic or atmospheric pe…