Dynamic laser ablation loading of a linear Paul trap

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Hauptverfasser: Li, Lin, Li, Zi, Hua, Xia, Tong, Xin
Format: Preprint
Veröffentlicht: 2024
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author Li, Lin
Li, Zi
Hua, Xia
Tong, Xin
author_facet Li, Lin
Li, Zi
Hua, Xia
Tong, Xin
contents We present a detailed method for accumulating Ca$^{+}$ ions controllably in a linear Paul trap. The ions are generated by pulsed laser ablation and dynamically loaded into the ion trap by switching the trapping potential on and off. The loaded ions are precooled by buffer gas and then laser-cooled to form Coulomb crystals for verifying quantity. The number of ions is controlled by manipulating the trapping potential of the ion trap, partial pressure of buffer gas and turn-on time of the entrance end cap voltage. With single-pulse laser ablation, the number of trapped ions ranges from tens to ten thousand. The kinetic energy of loaded ions can be selected via the optimal turn-on time of the entrance end cap. Using multiple-pulse laser ablation, the number is further increased and reaches about $4 \times 10^{4}$. The dynamic loading method has wide application for accumulating low-yielding ions via laser ablation in the ion trap.
format Preprint
id arxiv_https___arxiv_org_abs_2402_17981
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Dynamic laser ablation loading of a linear Paul trap
Li, Lin
Li, Zi
Hua, Xia
Tong, Xin
Atomic Physics
Applied Physics
We present a detailed method for accumulating Ca$^{+}$ ions controllably in a linear Paul trap. The ions are generated by pulsed laser ablation and dynamically loaded into the ion trap by switching the trapping potential on and off. The loaded ions are precooled by buffer gas and then laser-cooled to form Coulomb crystals for verifying quantity. The number of ions is controlled by manipulating the trapping potential of the ion trap, partial pressure of buffer gas and turn-on time of the entrance end cap voltage. With single-pulse laser ablation, the number of trapped ions ranges from tens to ten thousand. The kinetic energy of loaded ions can be selected via the optimal turn-on time of the entrance end cap. Using multiple-pulse laser ablation, the number is further increased and reaches about $4 \times 10^{4}$. The dynamic loading method has wide application for accumulating low-yielding ions via laser ablation in the ion trap.
title Dynamic laser ablation loading of a linear Paul trap
topic Atomic Physics
Applied Physics
url https://arxiv.org/abs/2402.17981