All-optical ion generation for ion trap loading

Abstract

We have investigated the all-optical generation of ions by photo-ionisation of atoms generated by pulsed laser ablation. A direct comparison between a resistively heated oven source and pulsed laser ablation is reported. Pulsed laser ablation with 10 ns Nd:YAG laser pulses is shown to produce large calcium flux, corresponding to atomic beams produced with oven temperatures greater than 650 K. For an equivalent atomic flux, pulsed laser ablation is shown to produce a thermal load more than one order of magnitude smaller than the oven source. The atomic beam distributions obey Maxwell-Boltzmann statistics with most probable speeds corresponding to temperatures greater than 2200 K. Below a threshold pulse fluence between 280 mJ/cm^2 and 330 mJ/cm^2, the atomic beam is composed exclusively of ground state atoms. For higher fluences ions and excited atoms are generated.

7 pages, 9 figures

References in corpus (10)

• Scalable multi-particle entanglement of trapped ions
• Quantum simulation of the Dirac equation
• The Ion Trap Quantum Information Processor
• Observation of the 1S0 - 3P0 clock transition in 27Al+
• Ion Trap in a Semiconductor Chip
• Isotope-selective photo-ionization for calcium ion trapping
• Fabrication and heating rate study of microscopic surface electrode ion traps
• Laser ablation loading of a surface-electrode ion trap
• An all-optical ion-loading technique for scalable microtrap architectures
• Raman spectroscopy of a single ion coupled to a high-finesse cavity

Cited by in corpus (12)

• A compact ion-trap quantum computing demonstrator
• Laser ablation loading of a radiofrequency ion trap
• Sympathetic cooling and detection of a hot trapped ion by a cold one
• Experimental and theoretical investigation of a multi-mode cooling scheme using multiple EIT resonances
• Laser ablation production of Ba, Ca, Dy, Er, La, Lu, and Yb ions
• Isotope-Selective Laser Ablation Ion-Trap Loading of ${}^{137}{\mathrm{Ba}}^{+}$ using a ${\mathrm{BaCl}}_2$ Target
• Prospect for precision quantum logic spectroscopy of vibrational overtone transitions in molecular oxygen ions
• Studies of thorium and ytterbium ion trap loading from laser ablation for gravity monitoring with nuclear clocks
• Rapid production of defect-free beryllium ion Coulomb crystals
• A Comparison of Calcium Sources for Ion-Trap Loading via Laser Ablation
• Absorption Spectroscopy of ${}^{40}$Ca Atomic Beams Produced via Pulsed Laser Ablation: A Quantitative Comparison of Ca and CaTiO${}_3$ Targets
• An optically-heated atomic source for compact ion trap vacuum systems