dorsal/arxiv
View SchemaMetastable level lifetimes from electron-shelving measurements with ion clouds and single ions
| Authors | Martina Knoop, Caroline Champenois, Gaëtan Hagel, Marie Houssin, Caroline Lisowski, Michel Vedel, Fernande Vedel |
|---|---|
| Categories | |
| ArXiv ID | physics/0309094 |
| URL | https://arxiv.org/abs/physics/0309094 |
| DOI | 10.1140/epjd/e2004-00022-6 |
Abstract
The lifetime of the 3d^2D_5/2-level in singly-ionized calcium has been measured by the electron-shelving technique on different samples of rf trapped ions. The metastable state has been directly populated by exciting the dipole-forbidden 4S_1/2 - 3D_5/2 transition. In ion clouds, the natural lifetime of this metastable level has been measured to be (1095+-27) ms. For the single-ion case, we determined a lifetime of (1152+-20) ms. The 1sigma-error bars at the 2%-level have different origins for the two kinds of experiments: data fitting methods for lifetime measurements in an ion cloud and control of experimental parameters for a single ion. De-shelving effects are extensively discussed. The influence of differing approaches for the processing of the single-ion quantum jump data on the lifetime values is shown. Comparison with recent measurements shows excellent agreement when evaluated from a given method.
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"abstract": "The lifetime of the 3d^2D_5/2-level in singly-ionized calcium has been\nmeasured by the electron-shelving technique on different samples of rf trapped\nions. The metastable state has been directly populated by exciting the\ndipole-forbidden 4S_1/2 - 3D_5/2 transition. In ion clouds, the natural\nlifetime of this metastable level has been measured to be (1095+-27) ms. For\nthe single-ion case, we determined a lifetime of (1152+-20) ms. The\n1sigma-error bars at the 2%-level have different origins for the two kinds of\nexperiments: data fitting methods for lifetime measurements in an ion cloud and\ncontrol of experimental parameters for a single ion. De-shelving effects are\nextensively discussed. The influence of differing approaches for the processing\nof the single-ion quantum jump data on the lifetime values is shown. Comparison\nwith recent measurements shows excellent agreement when evaluated from a given\nmethod.",
"arxiv_id": "physics/0309094",
"authors": [
"Martina Knoop",
"Caroline Champenois",
"Ga\u00ebtan Hagel",
"Marie Houssin",
"Caroline Lisowski",
"Michel Vedel",
"Fernande Vedel"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1140/epjd/e2004-00022-6",
"title": "Metastable level lifetimes from electron-shelving measurements with ion clouds and single ions",
"url": "https://arxiv.org/abs/physics/0309094"
},
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