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High-resolution fluorescence and absorption imaging of single trapped ions
B.G. Norton, E.W. Streed, A. Jechow, S. Händel, V. Blūms, D. Kielpinski
205 - 214
10.3254/978-1-61499-526-5-205
Proceedings of the International School of Physics "Enrico Fermi"
Volume 189: Ion Traps for Tomorrow's Applications
Abstract

A microfabricated phase Fresnel lens was used to obtain high-resolution fluorescence and absorption images of 174Yb+ ions trapped in a radiofrequency Paul trap. Fluorescence imaging was used to perform spatial thermometry of a single ion reaching ±5 mK accuracy and ±1 mK precision. By using absorption imaging we measured a phase shift of 1.3 radians imparted on an illumination beam by a single atom.

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