Rydberg-Stark deceleration of atoms and molecules

被引：56

作者：

Hogan, Stephen D. ^{[1
]}

机构：

[1] Department of Physics and Astronomy, University College London, Gower Street, London,WC1E 6BT, United Kingdom

来源：

EPJ Techniques and Instrumentation | 2016年 / 3卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

Atoms - Kinetic energy - Rydberg states - Electric dipole moments - Kinetics - Physical chemistry - Stark effect;

D O I：

10.1140/epjti/s40485-015-0028-4

中图分类号：

学科分类号：

摘要：

The large electric dipole moments associated with highly excited Rydberg states of atoms and molecules make gas-phase samples in these states very well suited to deceleration and trapping using inhomogeneous electric fields. The methods of Rydberg-Stark deceleration with which this can be achieved are reviewed here. Using these techniques, the longitudinal motion of beams of atoms and molecules moving at speeds as high as 2500 m/s have been manipulated, with changes in kinetic energy of up to |ΔEkin|=1.3×10−20 J (|ΔEkin|/e=80 meV or |ΔEkin|/hc=650 cm −1) achieved, while decelerated and trapped samples with number densities of 106– 107 cm −3 and translational temperatures of ∼150 mK have been prepared. Applications of these samples in areas of research at the interface between physics and physical chemistry are discussed. © 2016, Hogan; licensee Springer.

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