6533b82bfe1ef96bd128e2e4
RESEARCH PRODUCT
Efficient and robust photo-ionization loading of beryllium ions
Sebastian WolfKlaus WendtDominik StuderFerdinand Schmidt-kalersubject
Materials sciencePhysics and Astronomy (miscellaneous)Atomic Physics (physics.atom-ph)FOS: Physical sciencesGeneral Physics and Astronomychemistry.chemical_elementApplied Physics (physics.app-ph)02 engineering and technology01 natural sciences7. Clean energyPhysics - Atomic PhysicsIonlaw.inventionlawIonization0103 physical sciencesPhysics::Atomic Physics010306 general physicsGeneral EngineeringPhysics - Applied Physics021001 nanoscience & nanotechnologyLaserchemistryContinuous waveIon trapBerylliumAtomic physics0210 nano-technologyExcitationLight fielddescription
We demonstrate the efficient generation of Be$^+$ ions with a 60 ns and 150 nJ laser pulse near 235 nm for two-step photo-ionization, proven by subsequent counting the number of ions loaded into a linear Paul trap. The bandwidth and power of the laser pulse are chosen in such a way that a first, resonant step fully saturates the entire velocity distribution of beryllium atoms effusing from a thermal oven. The second excitation step is driven by the same light field causing efficient non-resonant ionization. Our ion-loading scheme is more than 15 times more efficient as compared to former pathways using two-photon continuous wave laser excitation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-11-03 | Applied Physics B |