Laser Cooling of Radium Ions

Laser cooling of trapped ions

Trapped and laser-cooled ions are increasingly used for a variety of modern high-precision experiments, for frequency standard applications, and for quantum information processing. Therefore laser cooling of trapped ions is reviewed, the current state of the art is reported, and several new cooling techniques are outlined. The principles of ion trapping and the basic concepts of laser cooling f...

Towards Laser Cooling of Magnesium Ions for Sympathetic cooling of Highly Charged Ions at SPECTRAP

Experiments with highly charged ions (HCI), especially with H-like and Li-like ions are an excellent testing ground for quantum electrodynamics (QED) in strong electric and magnetic fields and for precise measurements of fundamental constants. At the ESR, an experiment is being prepared to search for the hyperfine transition in lithiumlike Bi in order to disentangle nuclear structure from QED e...

Laser cooling of relativistic C ions at the ESR

Recent experiments [1,2] at the Experimental Storage Ring (ESR) at GSI have shown that relativistic Li-like carbon (C) ion beams can be laser-cooled to an unprecedented momentum spread of p/p 10. Here, a single-frequency laser was tuned to the Doppler-shifted 1s2s 1s2p (P1/2 and P3/2) transitions. These results encourage the application of laser cooling to beams of other Liand Na-like ions at e...

Laser cooling of atoms, ions, or molecules by coherent scattering

We point out a laser cooling method for atoms, molecules, or ions at low saturation and large detuning from the particles' resonances. The moving particle modifies the field inside a cavity with a time delay characteristic of the cavity linewidth, while the field acts on the particle via the light shift. The dissipative mechanism can be interpreted as Doppler cooling based on preferential scatt...

Proposal for laser-cooling of rare-earth ions