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Hannover 2010 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 54: Laser Applications: Optical Measurement Technology I

Q 54.9: Talk

Thursday, March 11, 2010, 16:00–16:15, F 342

Laser ablation loading of a linear Paul trap — •Kai Zimmermann, Maxim Okhapkin, Oscar Andrey Herrera Sancho, and Ekkehard Peik — Physikalisch-Technische Bundesanstalt, Braunschweig

We present a systematic study of ion production via photoablation using a small, low power nitrogen laser at 337 nm wavelength with ≈ 0.1 mJ pulse energy. Yield tests have been done with various metals in a time-of-flight experiment. The method allows to produce ions of elements like Ti or Th that are not easily evaporated and it also yields doubly charged ions. Ions of all elements that are presently considered for optical clocks or quantum logic applications could be produced efficiently. The setup was used to load a linear Paul trap with up to 105 ions by a single laser pulse.

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