Optical Stark decelerator for molecules
Optical Stark decelerator for molecules
复制标题
DOI：
10.1103/physrevlett.93.243004
复制
发表时间：
2004-12-10
影响因子：
8.6
通讯作者：
Barker, PF
中科院分区：
文献类型：
--
作者：
Fulton, R;Bishop, AI;Barker, PF
iotaWe 展示了一种用于中性分子的单级光学斯塔克减速器，它能够在 15 ns 持续时间的单脉冲高斯光场中将分子束内苯分子的平移能量降低 15%。光势引起的速度变化是通过慢场关闭后被第二光场电离的苯分子的飞行时间的变化来测量的。使用峰值强度为 1.6x10(12) W/cm(2) 的单高斯光束测量到速度最大降低 25 m/s，对应于最大井深 253 K。
iotaWe demonstrate a single stage optical Stark decelerator for neutral molecules which is capable of reducing the translational energy of benzene molecules within a molecular beam by 15% in a single pulsed Gaussian optical field of 15 ns duration. The change in velocity induced by the optical potential is measured by the change in the time of flight of benzene molecules ionized by a second optical field after the slowing field is turned off. A maximum reduction in the velocity of 25 m/s was measured using a single Gaussian beam with a peak intensity of 1.6x10(12) W/cm(2) corresponding to a maximum well depth of 253 K.