Efficient and robust photo-ionization loading of beryllium ions
Atomic Physics
2018-03-14 v1 Applied Physics
Abstract
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.
Cite
@article{arxiv.1711.01060,
title = {Efficient and robust photo-ionization loading of beryllium ions},
author = {Sebastian Wolf and Dominik Studer and Klaus Wendt and Ferdinand Schmidt-Kaler},
journal= {arXiv preprint arXiv:1711.01060},
year = {2018}
}
Comments
6 pages, 4 figures