Dark resonances as a probe for the motional state of a single ion
arXiv:physics/0407135 · doi:10.1007/s00340-005-1867-5
Abstract
Single, rf-trapped ions find various applications ranging from metrology to quantum computation. High-resolution interrogation of an extremely weak transition under best observation conditions requires an ion almost at rest. To avoid line-broadening effects such as the second order Doppler effect or rf heating in the absence of laser cooling, excess micromotion has to be eliminated as far as possible. In this work the motional state of a confined three-level ion is probed, taking advantage of the high sensitivity of observed dark resonances to the trapped ion's velocity. Excess micromotion is controlled by monitoring the dark resonance contrast with varying laser beam geometry. The influence of different parameters such as the cooling laser intensity has been investigated experimentally and numerically.
References in corpus (7)
- Deterministic entanglement of two trapped ions
- Ground state laser cooling using electromagnetically induced transparency
- Experimental demonstration of ground state laser cooling with electromagnetically induced transparency
- Cooling atomic motion with quantum interference
- Motional sidebands and direct measurement of the cooling rate in the resonance fluorescence of a single trapped ion
- Metastable level lifetimes from electron-shelving measurements with ion clouds and single ions
- Raman cooling and heating of two trapped Ba+ ions
Cited by in corpus (11)
- Precise determination of micromotion for trapped-ion optical clocks
- Implementation of a symmetric surface electrode ion trap with field compensation using a modulated Raman effect
- Electron impact ionization loading of a surface electrode ion trap
- Fast thermometry for trapped ions using dark resonances
- Ion-crystal demonstration of structural phase transition induced solely by temperature
- Absolute Single Ion Thermometry
- Schrödinger cat and Werner state disentanglement simulated by trapped ion systems
- Three-laser coherent population trapping in a multi-lambda system: theory, experiment and applications
- Micromotion compensation of trapped ions by qubit transition and direct scanning of dc voltages
- Optical frequency analysis on dark state of a single trapped ion
- Thermal bistability in laser-cooled trapped ions