Ionic crystals in a linear Paul trap
Abstract
A configuration is described for a linear Paul RF ion trap. This trap can store a long string of ions with a small second-order Doppler shift, comparable to that achieved with a single ion in a quadrupole Paul trap. Crystallized strings of trapped ions, as well as more complicated structures, are observed in the trap. The 40.5-GHz ground-state hyperfine interval of Hg-199(+) is observed by microwave-optical double-resonance spectroscopy. Prospects for a microwave-frequency standard based on a trapped string of ions is discussed.
- Publication:
-
Physical Review A
- Pub Date:
- May 1992
- DOI:
- 10.1103/PhysRevA.45.6493
- Bibcode:
- 1992PhRvA..45.6493R
- Keywords:
-
- Doppler Effect;
- Fine Structure;
- Ion Traps (Instrumentation);
- Ionic Crystals;
- Mercury Isotopes;
- Microwave Spectra;
- Coulomb Potential;
- Electron States;
- Ground State;
- Quadrupoles;
- 32.80.Pj;
- 32.30.Bv;
- 95.55.Wk;
- 36.40.+d;
- Atomic and Molecular Physics;
- Optical cooling of atoms;
- trapping;
- Radio-frequency microwave and infrared spectra