Real-Time Trajectory Control of Deterministically Produced Ions

Lopez, C.; Trimeche, A.; Comparat, D.; Picard, Y. J.

doi:10.1103/physrevapplied.11.064049

Cited by 15 publications

(15 citation statements)

References 18 publications

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“…The optimization of these conditions (Doppler selection, ionization at threshold, proper spatial section of the ionization region, ...) are discussed in details in Ref. [11]. The result is that our system has a quite good correlation quality and this allowed us to get the clear images of figures 1 (c).…”

mentioning

confidence: 86%

“…The experimental setup, designed to produce beams of correlated ions and electrons, has been described in detail previously [11] and only a brief description of the parts that are relevant for this work will be given here. The setup is based on a double time-of-flight (TOF) spec-trometer with detectors at opposite ends monitored in coincidence mode.…”

mentioning

confidence: 99%

“…uses MCP as spatial resolution detector, the resolution being typically ∼ 50 µm (for segmented anodes, delay lines or phosphor screen) could be enhanced by using zoomed ghost-imaging. Furthermore, providing that the correlation between ion and electron positions stays in a one-to-one correspondence, a dynamical or post mathematical treatment of the image can be used to correct the ghost-image even if some aberrations appear [11].…”

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confidence: 99%

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Ion and Electron Ghost Imaging

Trimeche,

Lopez,

Comparat

et al. 2020

Preprint

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In this Letter, we report a demonstration of ion and electron ghost imaging. Two beams of correlated ions and electrons are produced by a photoionization process and accelerated into opposite directions. Using a single time and position sensitive detector for one beam, we can image an object seen by the other beam even when the detector that sees this object has no spatial resolution. The extra information given by this second detector can, therefore, be used to reconstruct the image thanks to the correlation between the ions and the electrons. In our example, a metallic mask placed in front of a time-sensitive detector is used as the object to image. We demonstrated ion and electron ghost imaging using this mask in a transmission mode. These primary results are very promising and open applications especially in ion and electron imaging in surface science and nanophysics.

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confidence: 86%

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confidence: 99%

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Ion and Electron Ghost Imaging

Trimeche,

Lopez,

Comparat

et al. 2020

Preprint

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“…Then taking advantage of the impact location of the detected photo-electron to guess the position in space of the parent Xe + ion. They can then, apply active corrections to the deflector along the path of the extracted ion [85]. In principle, such an ion beam where each ion is taken from a known place and actively guided to its desired destination is not restricted to Liouville conservation of phase-space and could pave the way to a new generation of experiments.…”

Section: My Legacy From Michelmentioning

confidence: 99%

Revisiting Atomic Collisions Physics with highly charged ions, A tribute to Michel Barat

Roncin

2020

Preprint

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Michel Barat passed away in November 2018 at the age of 80 after a rich career in atomic and molecular collisions. He had participated actively in formalizing to the electron promotion model, contributed to low energy reactive collisions at the frontier of chemistry. He investigated electron capture mechanisms by highly charged ions, switched to collision induced cluster dissociation and finally to UV laser excitation induced fragmentation mechanisms of biological molecules. During this highly active time he created a lab, organized ICPEAC and participated actively in the administration of research. This paper covers the ten years where he mentored my scientific activity in the blossoming field of electron capture by highly charge ions (HCI). In spite of an impressive number of open channels, Michel found a way to capture the important parameters and to simplify the description of several electron capture processes; orientation propensity, electron promotion, true double electron capture, Transfer ionisation, Transfer excitation, formation of Rydberg states, and electron capture by metastable states. Each time Michel established fruitful collaborations with other groups.

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“…The release of trapped atoms and observation of arrival times after a free fall is since the beginning used to reveal their temperature [18,19]. Neutral atoms may be ionized and subsequently accelerated by electrical fields [20], or electrostatic multi-reflection devices are used for accurate mass spectroscopy or lifetime measurements [21,22,23,24]. Extraction of ions from Paul traps was demonstrated for single ions [25,26,27,28].…”

Section: Introductionmentioning

confidence: 99%

Single Ion Thermal Wave Packet Analyzed Via Time-Of-Flight Detection

Stopp,

Ortiz-Gutiérrez,

Lehec

et al. 2021

Preprint

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A single 40 Ca ion is confine in the harmonic potential of a Paul trap and cooled to a temperature of a few mK, with a wave packet of sub-µm spatial and sub-m /s velocity uncertainty. Deterministically extracted from the Paul trap, the single ion is propagating over a distance of 0.27 m and detected. By engineering the ion extraction process on the initial wave packet, theoretically modeling the ion trajectories, and studying experimentally the time-of-flight distribution, we directly infer the state of the previously trapped ion. This analysis allows for accurate remote sensing of the previous motional excitation in the trap potential, both coherently or incoherently. Our method paves a way to extract, manipulate and design quantum wave packets also outside of the Paul trap.

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Real-Time Trajectory Control of Deterministically Produced Ions

Cited by 15 publications

References 18 publications

Ion and Electron Ghost Imaging

Ion and Electron Ghost Imaging

Revisiting Atomic Collisions Physics with highly charged ions, A tribute to Michel Barat

Single Ion Thermal Wave Packet Analyzed Via Time-Of-Flight Detection

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