Resonance enhanced isotope-selective photoionization of YbI for ion trap loading

Abstract

Neutral Ytterbium (YbI) and singly ionized Ytterbium (YbII) is widely used in experiments in quantum optics, metrology and quantum information science. We report on the investigation of isotope selective two-photoionisation of YbI that allows for efficient loading of ion traps with YbII. Results are presented on two-colour (399 nm and 369 nm) and single-colour (399 nm) photoionisation and their efficiency is compared to electron impact ionisation. Nearly deterministic loading of a desired number of YbII ions into a linear Paul trap is demonstrated.

9 pages. Considerably extended and revised version including new data

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• Thick-film technology for ultra high vacuum interfaces of micro-structured traps
• Isotope-Selective Laser Ablation Ion-Trap Loading of ${}^{137}{\mathrm{Ba}}^{+}$ using a ${\mathrm{BaCl}}_2$ Target
• Operation of a Microfabricated Planar Ion-Trap for Studies of a Yb${}^{+}$-Rb Hybrid Quantum System
• A frequency-stabilized light source at 399 nm using an Yb hollow-cathode lamp
• Heating rate measurement and characterization of a prototype surface-electrode trap for optical frequency metrology
• Broadband lasers for photo-ionization and repumping of trapped ions
• High-Resolution Spectroscopy of ${}^{173}$Yb${}^{+}$ Ions