Results 11 to 20 of about 542 (120)
Principles and Design of a Zeeman-Sisyphus Decelerator for Molecular Beams. [PDF]
Chemphyschem, 2016 AbstractWe explore a technique for decelerating molecules using a static magnetic field and optical pumping. Molecules travel through a spatially varying magnetic field and are repeatedly pumped into a weak‐field seeking state as they move towards each strong field region, and into a strong‐field seeking state as they move towards weak field.
Fitch NJ, Tarbutt MR.
europepmc +9 more sources
High-resolution imaging of molecular collisions using a Zeeman decelerator [PDF]
The Journal of Chemical Physics, 2020 We present the first crossed beam scattering experiment using a Zeeman decelerated molecular beam. The narrow velocity spreads of Zeeman decelerated NO (X2Π3/2, j = 3/2) radicals result in high-resolution scattering images, thereby fully resolving quantum diffraction oscillations in the angular scattering distribution for inelastic NO–Ne collisions and
Vikram Plomp +4 more
openaire +6 more sources
Multistage Zeeman decelerator for molecular-scattering studies [PDF]
Physical Review A, 2017 We present a new concept for a multi-stage Zeeman decelerator that is optimized particularly for applications in molecular beam scattering experiments. The decelerator consists of a series of alternating hexapoles and solenoids, that effectively decouple the transverse focusing and longitudinal deceleration properties of the decelerator.
Theo Cremers +6 more
openaire +4 more sources
Investigation of the fine structure of antihydrogen. [PDF]
Nature, 2020 At the historic Shelter Island Conference on the Foundations of Quantum Mechanics in 1947, Willis Lamb reported an unexpected feature in the fine structure of atomic hydrogen: a separation of the 2S1/2 and 2P1/2 states1.
ALPHA Collaboration.
europepmc +4 more sources
Phase stability in a multistage Zeeman decelerator [PDF]
Physical Review A, 2010 ISSN:1094 ...
Wiederkehr, A.W. +2 more
openaire +4 more sources
Imaging Resonance Effects in C + H2 Collisions Using a Zeeman Decelerator. [PDF]
J Phys Chem LettAn intriguing phenomenon in molecular collisions is the occurrence of scattering resonances, which originate from bound and quasi-bound states supported by the interaction potential at low collision energies. The resonance effects in the scattering behaviour are extraordinarily sensitive to the interaction potential, and their observation provides one ...
Plomp V +6 more
europepmc +6 more sources
Getting a grip on the transverse motion in a Zeeman decelerator [PDF]
The Journal of Chemical Physics, 2014 Zeeman deceleration is an experimental technique in which inhomogeneous, time-dependent magnetic fields generated inside an array of solenoid coils are used to manipulate the velocity of a supersonic beam. A 12-stage Zeeman decelerator has been built and characterized using hydrogen atoms as a test system.
Dulitz, K. +3 more
openaire +8 more sources
Model for the overall phase-space acceptance in a Zeeman decelerator [PDF]
Physical Review A, 2015 We present a new formalism to calculate phase-space acceptance in a Zeeman decelerator. Using parameters closely mimicking previous Zeeman deceleration experiments, this approach reveals a hitherto unconsidered velocity dependence of the phase stability which we ascribe to the finite rise and fall times of the current pulses that generate the magnetic ...
Dulitz, K., Vanhaecke, N., Softley, T.
openaire +5 more sources
Design and construction of a multistage Zeeman decelerator for crossed molecular beams scattering experiments [PDF]
Review of Scientific Instruments, 2019 Zeeman deceleration is a relatively new technique used to obtain full control over the velocity of paramagnetic atoms or molecules in a molecular beam. We present a detailed description of a multistage Zeeman decelerator that has recently become operational in our laboratory [Cremers et al., Phys. Rev.
Theo Cremers +3 more
openaire +7 more sources
Zeeman-Sisyphus Deceleration of Molecular Beams [PDF]
Physical Review Letters, 2021 We present a robust, continuous molecular decelerator that employs high magnetic fields and few optical pumping steps. CaOH molecules are slowed, accumulating at low velocities in a range sufficient for loading both magnetic and magneto-optical traps. During the slowing, the molecules scatter only 7 photons, removing around 8 K of energy. Because large
Benjamin L. Augenbraun +7 more
openaire +3 more sources