Results 31 to 40 of about 116 (97)
Metaoptics with Nonrelativistic Matter Waves
The counterpart of metamaterials in light optics for nonrelativistic matter waves governed by the Schrödinger equation can be found by transiently reversing the group velocity using a so called comoving potential. Possible applications to wave‐packet dynamics, atom interferometry, and atom deceleration are described.
T. Taillandier-Loize +8 more
wiley +1 more source
Reprogrammable Mechanical Metamaterials via Passive and Active Magnetic Interactions
The combination of flexible matrices with embedded hard‐magnetic nodes enables metastructures with reprogrammable mechanical properties, even in the absence of external magnetic fields. The evolving interaction between nodes during structural deformation allows mechanical tunability under quasi‐static and dynamic loading, and bistable transitions. This
Carlos Perez‐Garcia +7 more
wiley +1 more source
Millimeter‐ and Submillimeter‐wave Kinetic Spectroscopy of Reaction Intermediates
A spectroscopic method has been developed to study chemical reaction processes through in situ observation of the time profile of molecular absorptions in the millimeter‐ and submillimeter‐wave regions. The method has been applied to oxidation reactions of unsaturated hydrocarbons initiated by mercury photosensitization.
Yasuki Endo +2 more
wiley +1 more source
The curvature gradient of the elliptical‐ring track causes both an increase and a decrease change modes of the skyrmion's velocity. The two change modes in velocity can be used to construct skyrmion‐based devices. The increased velocity is employed to facilitate the transmission of skyrmions, while the decreased velocity is used to intercept skyrmions ...
Na Cai, Yan Liu
wiley +1 more source
Velocity-selected magnetic guiding of Zeeman-decelerated hydrogen atoms [PDF]
An original design of magnetic guide is presented, suitable for use with Zeeman-decelerated supersonic beams of ground-state hydrogen atoms and other light paramagnetic species. Three-dimensional particle trajectory simulations show that, by combining a series of permanent-magnet Halbach arrays with pulsed high-current wire electromagnets, this guide ...
Dulitz, Katrin, Softley, Timothy P.
openaire +1 more source
Zeeman deceleration of methyl radical
Conventional Zeeman decelerator, consisting of 80 stages, was constructed and tested. The experimental setup was characterized using O₂ as the reference molecule. Known results of deceleration of O₂ were reproduced. As an extension, detailed REMPI analysis of deceleration of O₂ was carried out, this REMPI analysis was conducted in parallel with ref [1].
openaire +1 more source
A new concept multi-stage Zeeman decelerator
Previously uploaded as two separate articles with arXiv:1702.04223, now merged into ...
Cremers, Theo +6 more
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Methods for Zeeman-Sisyphus deceleration of heavy polar molecules
Zeeman-Sisyphus deceleration (ZS, ZSD) is a method for slowing polar molecules while scattering only a small number of photons when compared with direct laser cooling. It also ensures that molecules are transversely confined by application of transverse magnetic field gradients. It has applications in ensuring that a wider range of molecules, including
openaire +2 more sources
Ring-shaped traveling wave Zeeman decelerator for both light and heavy molecules
Abstract Taming more species of molecules with large density is a long-standing goal in molecular science. Heavy molecule (> 100 amu) is of particular interest for precision measurements. However, decelerating a fast-moving beam of heavy molecules to rest remains challenging for Zeeman deceleration.
Yabing Ji +5 more
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Multistage Zeeman deceleration of atoms and molecules
A modular multistage Zeeman decelerator consisting of an array of solenoids has been developed to control the velocity of cold, paramagnetic atoms and molecules in supersonic beams. The translational motion these atoms and molecules was manipulated with high precision by exploiting the interaction between their magnetic moments and timedependent ...
openaire +2 more sources

