Marion Delehaye
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View article: A framework for continuous superradiant laser operation via sequential transport of atoms
A framework for continuous superradiant laser operation via sequential transport of atoms Open
We perform a theoretical study of a continuous superradiant laser supporting its experimental realization at FEMTO-ST using two sequentially-emitting ensembles of ${}^{171}\mathrm{Yb}$ atoms coupled to the same Fabry-Perot cavity. Using an…
View article: Offset sideband locking to iodine for laser cooling on the <sup>1</sup>S<sub>0</sub> → <sup>3</sup>P<sub>1</sub> transition of <sup>171</sup>Yb
Offset sideband locking to iodine for laser cooling on the <sup>1</sup>S<sub>0</sub> → <sup>3</sup>P<sub>1</sub> transition of <sup>171</sup>Yb Open
We present absolute frequency measurements of a laser stabilized using an offset sideband locking technique on the P(49)24-1 rovibrational transition of 127 I 2 near 556 nm. The P(49)24-1 transition is offset by 4.8 GHz from the intercombi…
View article: Superradiant active optical atomic clocks: motivations and current challenges
Superradiant active optical atomic clocks: motivations and current challenges Open
Current state-of-the-art frequency standards are passive optical atomic clocks where the frequency of an optical resonator is stabilized to a narrow atomic transition. Passive clocks have achieved unprecedented stabilities of 6.6 x 10--19 …
View article: Superradiant active optical atomic clocks: motivations and current challenges
Superradiant active optical atomic clocks: motivations and current challenges Open
Current state-of-the-art frequency standards are passive optical atomic clocks where the frequency of an optical resonator is stabilized to a narrow atomic transition. Passive clocks have achieved unprecedented stabilities of 6.6 × 10 −19 …
View article: Progress on a <sup>171</sup>Yb-Based Active Optical Atomic Clock
Progress on a <sup>171</sup>Yb-Based Active Optical Atomic Clock Open
International audience
View article: Fully digital platform for local ultra-stable optical frequency distribution
Fully digital platform for local ultra-stable optical frequency distribution Open
This article reports on the use of a Field Programmable Gate Array (FPGA) platform for local ultra-stable optical frequency distribution through a 90 m-long fiber network. This platform is used to implement a fully digital treatment of the…
View article: Heating rate measurement and characterization of a prototype surface-electrode trap for optical frequency metrology
Heating rate measurement and characterization of a prototype surface-electrode trap for optical frequency metrology Open
We present the characterization of a prototype surface-electrode (SE) trap as a first step towards the realization of a compact, single-ion optical clock based on Yb$^+$. The use of a SE trap will be a key factor to benefit from clean-room…
View article: Absolute frequency measurements of the <sup>1</sup>S<sub>0</sub> → <sup>1</sup>P<sub>1</sub> transition in ytterbium
Absolute frequency measurements of the <sup>1</sup>S<sub>0</sub> → <sup>1</sup>P<sub>1</sub> transition in ytterbium Open
The ytterbium atom is widely used in the fields of atomic physics, cavity quantum electrodynamics, quantum information processing, and optical frequency standards. There is however a strong dispersion among the reported values of the 1 S 0…
View article: Absolute frequency measurements of the 1S0 -> 1P1 transition in ytterbium
Absolute frequency measurements of the 1S0 -> 1P1 transition in ytterbium Open
International audience
View article: Single-ion, transportable optical atomic clocks
Single-ion, transportable optical atomic clocks Open
For the past 15 years, tremendous progress within the fields of laser\nstabilization, optical frequency combs and atom cooling and trapping have\nallowed the realization of optical atomic clocks with unrivaled performances.\nThese instrume…
View article: Residual Phase Noise Measurement of Optical Second Harmonic Generation in PPLN Waveguides
Residual Phase Noise Measurement of Optical Second Harmonic Generation in PPLN Waveguides Open
We report on the characterization, including residual phase noise and fractional frequency instability, of fiber-coupled PPLN non-linear crystals. These components are devoted to frequency doubling 871 nm light from an extended-cavity diod…
View article: Connecting Few-Body Inelastic Decay to Quantum Correlations in a Many-Body System: A Weakly Coupled Impurity in a Resonant Fermi Gas
Connecting Few-Body Inelastic Decay to Quantum Correlations in a Many-Body System: A Weakly Coupled Impurity in a Resonant Fermi Gas Open
We study three-body recombination in an ultracold Bose-Fermi mixture. We first show theoretically that, for weak interspecies coupling, the loss rate is proportional to Tan's contact. Second, using a ^{7}Li/^{6}Li mixture we probe the reco…
View article: Mixtures of superfluids
Mixtures of superfluids Open
Ultracold atoms are unique tools to probe the physics of quantum matter. Indeed, the high degree of tunability of ultracold Bose and Fermi gases makes them ideal systems for quantum simulation and for exploring macroscopic manifestations o…