51 citations · 151 across the 13 of their papers we have counts for
14 papers
Deterministic Free-Propagating Photonic Qubits with Negative Wigner Functions
Valentin Magro, Julien Vaneecloo, Sébastien Garcia +1
Engineering quantum states of free-propagating light is of paramount importance for quantum technologies. Coherent states ubiquitous in classical and quantum communications, squeez…
An Intracavity Rydberg Superatom for Optical Quantum Engineering: Coherent Control, Single-Shot Detection and Optical Phase Shift
Julien Vaneecloo, Sébastien Garcia, Alexei Ourjoumtsev
We demonstrate a new versatile building block for optical quantum technologies, based on an intracavity Rydberg-blockaded atomic ensemble acting as a single two-level superatom. We…
An optical elevator for precise delivery of cold atoms using an acousto-optical deflector
Francesco Ferri, Arthur La Rooij, Claire Lebouteiller +6
We implement a simple method for fast and precise delivery of ultracold atoms to a microscopic device, i.e. a Fabry-Perot microcavity. By moving a single beam optical dipole trap i…
High-Resolution Imaging of Cold Atoms through a Multimode Fiber
Nicolas Vitrant, Sébastien Garcia, Kilian Müller +1
We developed an ultra-compact high-resolution imaging system for cold atoms. Its only in-vacuum element is a multimode optical fiber with a diameter of m, which simultaneou…
Overlapping two standing-waves in a microcavity for a multi-atom photon interface
Sébastien Garcia, Francesco Ferri, Jakob Reichel +1
We develop a light-matter interface enabling strong and uniform coupling between a chain of cold atoms and photons of an optical cavity. This interface is a fiber Fabry-Perot cavit…
Manipulating cold atoms through a high-resolution compact system based on a multimode fiber
Nicolas Vitrant, Kilian Müller, Sébastien Garcia +1
To manipulate cold atoms in spatially constrained quantum engineering platforms, we developed a lensless optical system with a 1 m resolution and a transverse size of only…
Mapping standing-wave cavity modes with a commercial scanning near-field microscope tip
Francesco Ferri, Sébastien Garcia, Mohamed Baghdad +2
We describe a method to map the standing-wave pattern inside a Fabry-Perot optical cavity with sub-wavelength resolution by perturbing it with a commercially available scanning nea…
Single-shot Non-destructive Detection of Rydberg Atom Ensembles by Transmission Measurement of a Microwave Cavity
Sébastien Garcia, Mathias Stammeier, Johannes Deiglmayr +2
Rydberg atoms are at the core of an increasing number of experiments, which frequently rely on destructive detection methods, such as field ionization. Here, we present an experime…
Dual-wavelength fiber Fabry-Perot cavities with engineered birefringence
Sébastien Garcia, Francesco Ferri, Konstantin Ott +2
We present a method to engineer the frequency splitting of polarization eigenmodes in fiber Fabry-Perot (FFP) cavities. Using specific pattern of multiple CO laser pulses, we m…
Applying Electric and Magnetic Field Bias in a 3D Superconducting Waveguide Cavity with High Quality Factor
M. Stammeier, S. Garcia, A. Wallraff
Three-dimensional microwave waveguide cavities are essential tools for many cavity quantum electrodynamics experiments. However, the need to control quantum emitters with dc magnet…
Compensating fictitious magnetic field gradients in optical microtraps by using elliptically polarized dipole light
Sébastien Garcia, Jakob Reichel, Romain Long
Tightly focused optical dipole traps induce vector light shifts ("fictitious magnetic fields") which complicate their use for single-atom trapping and manipulation. The problem can…
Quantum optomechanics in a liquid
A. B. Shkarin, A. D. Kashkanova, C. D. Brown +4
Optomechanical systems provide a means for studying and controlling quantum effects in the motion of macroscopic objects. To date, quantum optomechanical effects have been studied…
Millimeter-long Fiber Fabry-Perot cavities
Konstantin Ott, Sebastien Garcia, Ralf Kohlhaas +4
We demonstrate fiber Fabry-Perot (FFP) cavities with concave mirrors that can be operated at cavity lengths as large as 1.5mm without significant deterioration of the finesse. This…
Fiber-pigtailed optical tweezer for single-atom trapping and single-photon generation
Sébastien Garcia, Dominik Maxein, Leander Hohmann +2
We demonstrate a miniature, fiber-coupled optical tweezer to trap a single atom. The same fiber is used to trap a single atom and to read out its fluorescence. To obtain a low back…