Laser sideband cooling with positive detuning

Autor: Christian Schwedes, Ekkehard Peik, Herbert Walther, Thomas Becker, Joachim von Zanthier
Rok vydání: 2004
Předmět:
Zdroj: Physical Review A. 69
ISSN: 1094-1622
1050-2947
DOI: 10.1103/physreva.69.053412
Popis: An experimental and theoretical study of laser sideband cooling of a trapped ion in a radiofrequency trap is presented. The influence of the micromotion in the time-dependent potential of a Paul trap can lead to a counterintuitive situation, where sideband cooling is possible for positive values of the laser detuning, i.e., for a laser frequency that is higher than the resonance frequency of the ion at rest. The cooling rate and the capture range are calculated in a semiclassical model. Experimental results of laser sideband cooling at positive detuning are demonstrated with a single trapped In{sup +} ion stored in a miniature Paul trap.
Databáze: OpenAIRE