Molecular reorientation in collisions of OH plus Ar

被引：32

作者：

van Beek, MC ^{[1
]}

Berden, G ^{[1
]}

Bethlem, HL ^{[1
]}

ter Meulen, JJ ^{[1
]}

机构：

[1] Univ Nijmegen, Dept Mol & Laser Phys, NL-6500 GL Nijmegen, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.86.4001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Orientational effects in rotationally elastic collisions of OH with Ar were studied in a crossed molecular beam setup. A static electric field was applied to orient the molecules before the collision. After the collision the orientation was measured by using a narrow-band laser system to probe the Stark-split states corresponding to different orientations. Differential and integral cross sections for reorientation of the molecular axis have been determined as a function of the initial orientation. The cross section for reorientation by one quantum is 25 Angstrom (2) with a preference for O-end collisions.

引用

页码：4001 / 4004

页数：4

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