Stark deceleration and trapping of hydrogen Rydberg atoms

被引：59

作者：

Vliegen, E. ^{[1
]}

Hogan, S. D. ^{[1
]}

Schmutz, H. ^{[1
]}

Merkt, F. ^{[1
]}

机构：

[1] ETH, Chem Phys Lab, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW A | 2007年 / 76卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.76.023405

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Hydrogen atoms in supersonic expansions with velocities in the range from 700 to 800 m/s have been excited to Rydberg-Stark states with principal quantum number n between 20 and 40, decelerated to zero velocity in the lab frame using time-dependent inhomogeneous electric fields, and trapped in a two-dimensional electrostatic trap with an initial density of approximate to 5x10(6) cm(-3). The motion of the atomic cloud in the trap was observed by measuring the times of flight and images of the H+ ions produced by pulsed field ionization. The velocity distribution of the trapped atoms can be described by an effective temperature of 350 mK. The decay of the population of trapped atoms does not follow a single-exponential behavior and has contributions from radiative and collisional processes.

引用

页数：6

共 21 条

[1]

Bethe H. A., 1957, QUANTUM MECH ONE 2 E

[2] STARK ACCELERATION OF RYDBERG ATOMS IN INHOMOGENEOUS ELECTRIC-FIELDS [J].