145 citations · 876 across the 23 of their papers we have counts for
11 papers · 1 filter
Shelving spectroscopy of the strontium intercombination line
I. Manai, A. Molineri, C. Fréjaville +8
We present a spectroscopy scheme for the 7-kHz-wide 689-nm intercombination line of strontium. We rely on shelving detection, where electrons are first excited to a metastable stat…
Note on the reflectance of mirrors exposed to a strontium beam
J. Huckans, W. Dubosclard, E. Maréchal +3
The high chemical reactivity of strontium, which can opacify a viewport exposed to a strontium atomic source, is a concern for some atomic physics experiments where it is sometimes…
Density matrix reconstruction of three-level atoms via Rydberg electromagnetically induced transparency
V. Gavryusev, A. Signoles, M. Ferreira-Cao +7
We present combined measurements of the spatially-resolved optical spectrum and the total excited-atom number in an ultracold gas of three-level atoms under electromagnetically ind…
Full counting statistics of laser excited Rydberg aggregates in a one-dimensional geometry
H. Schempp, G. Günter, M. Robert-de-Saint-Vincent +8
We experimentally study the full counting statistics of few-body Rydberg aggregates excited from a quasi-one-dimensional Rydberg gas. We measure asymmetric excitation spectra and i…
An experimental approach for investigating many-body phenomena in Rydberg-interacting quantum systems
C. S. Hofmann, G. Günter, H. Schempp +6
Recent developments in the study of ultracold Rydberg gases demand an advanced level of experimental sophistication, in which high atomic and optical densities must be combined wit…
Sub-Poissonian statistics of Rydberg-interacting dark-state polaritons
Christoph S. Hofmann, Georg Günter, Hanna Schempp +5
Interfacing light and matter at the quantum level is at the heart of modern atomic and optical physics and enables new quantum technologies involving the manipulation of single pho…
Spontaneous avalanche ionization of a strongly blockaded Rydberg gas
M. Robert-de-Saint-Vincent, C. S. Hofmann, H. Schempp +3
We report the sudden and spontaneous evolution of an initially correlated gas of repulsively interacting Rydberg atoms to an ultracold plasma. Under continuous laser coupling we cr…
Interaction enhanced imaging of individual atoms embedded in dense atomic gases
G. Günter, M. Robert-de-Saint-Vincent, H. Schempp +3
We propose a new all-optical method to image individual atoms within dense atomic gases. The scheme exploits interaction induced shifts on highly polarizable excited states, which…
A frequency doubled 1534 nm laser system for potassium laser cooling
Guillaume Stern, Baptiste Allard, Martin Robert-de-Saint-Vincent +4
We demonstrate a compact laser source suitable for the trapping and cooling of potassium. By frequency doubling a fiber laser diode at 1534 nm in a waveguide, we produce 767 nm las…
A quantum trampoline for ultra-cold atoms
Martin Robert De Saint Vincent, Jean-Philippe Brantut, Christian J. Bordé +3
We have observed the interferometric suspension of a free-falling Bose-Einstein condensate periodically submitted to multiple-order diffraction by a vertical 1D standing wave. The…
All-optical runaway evaporation to Bose-Einstein condensation
Jean-Francois Clément, Jean-Philippe Brantut, Martin Robert De Saint Vincent +4
We demonstrate runaway evaporative cooling directly with a tightly confining optical dipole trap and achieve fast production of condensates of 1.5x10^5 87Rb atoms. Our scheme is ch…