2-photon ionization and necessary laser and vacuum systems for experiments with trapped strontium ions

Details 2-photon ionization and necessary laser and vacuum systems for experiments with trapped strontium ions 2-photon ionization and necessary laser and vacuum systems for experiments with trapped strontium ions

2007-12-03

arxiv.org/abs/0712.0222v1

Physics

Quantum Physics

11 pages, 13 figures

Scientific paper

We describe a efficient way to photoionize strontium atoms in a linear radio-frequency trap. We use a 2-photon second order process to excite the autoionization resonance (4d2 + 5p2) 1D2. A doubled pulsed Ti:Saphire laser system is used at 431nm to provide 100fsec pulses at 82Mhz. The fabrication of the laser systems for addressing the Sr+ transitions necessary for laser cooling and excitation of quantum jumps, vacuum system and ion trap structure are also described in detail. With the current setup a easy and repeatable trapping of linear ion chains is achieved at UHV pressures.

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