Decelerating molecules with microwave fields

被引：19

作者：

Merz, Simon ^{[1
]}

Vanhaecke, Nicolas ^{[1
]}

Jaeger, Wolfgang ^{[2
]}

Schnell, Melanie ^{[3
,4
]}

Meijer, Gerard ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

[2] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada

[3] Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany

[4] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

来源：

PHYSICAL REVIEW A | 2012年 / 85卷 / 06期

关键词：

TRAPS; BEAM;

D O I：

10.1103/PhysRevA.85.063411

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the experimental realization of a microwave decelerator for neutral polar molecules, suitable for decelerating and focusing molecules in high-field-seeking states. The multistage decelerator consists of a cylindrical microwave cavity oscillating in the TE11n mode, with n = 12 electric fieldmaxima along the symmetry axis. By switching the microwave field on and off at the appropriate times, a beam of state-selected ammonia molecules with an incident mean velocity of 25 m/s is guided while being spatially focused in the transverse direction and bunched in the forward direction. Deceleration from 20.0 to 16.9 m/s and acceleration from 20.0 to 22.7 m/s are demonstrated.

引用

页数：4

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