LASER VAPORIZATION TIME-OF-FLIGHT STUDIES OF CRYOGENIC CL2/XE FILMS

被引：18

作者：

CAMPOS, FX ^{[1
]}

WALTMAN, CJ ^{[1
]}

LEONE, SR ^{[1
]}

机构：

[1] UNIV COLORADO,DEPT CHEM,BOULDER,CO 80309

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 201卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(93)85091-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Laser ablation of cryogenic films formed from mixtures of Cl2 and Xe is studied by measuring the velocity distributions of the vaporized products. The mean velocity of the products vaporized by 355 nm light depends strongly on the Cl2 fraction and the film thickness. In addition, the ablation of thick films with a Xe fraction above 50% produces velocity distributions with slow and fast components having distinct temperatures. The fast component is found to have enhanced amounts of both Xe and Cl atoms. The results suggest that inhomogeneities in the cryogenic films, in the form of zones of relatively high Cl2 concentration, play an important role in the vaporization process.

引用

页码：399 / 403

页数：5

共 6 条

[1] PRODUCTION OF 0.1-3 EV REACTIVE MOLECULES BY LASER VAPORIZATION OF CONDENSED MOLECULAR FILMS - A POTENTIAL SOURCE FOR BEAM-SURFACE INTERACTIONS [J].