Excited-state detachment dynamics and rotational coherences of C2- via time-resolved photoelectron imaging

被引：48

作者：

Bragg, AE

Wester, R

Davis, AV

Kammrath, A

Neumark, DM ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 376卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(03)01060-1

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：

Time-resolved photoelectron imaging (TRPEI) is used to investigate the effect of time-evolving alignment on the photoelectron angular distribution (PAD) from anion photo detachment. The B <-- X 0(0)(0) transition in C-2(-) is pumped with a ferritosecond laser pulse at 541 nm and probed by femtosecond photodetachment at 264 nm. The pump pulse produces rotational coherences in the upper state that exhibit partial and full revivals, as evidenced by modulation of the PAD anisotropy moments. From these, one can extract the excited state rotational constant of C, and information regarding the molecular frame PAD. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：767 / 775

页数：9

共 35 条

[1] Molecular alignment from femtosecond time-resolved photoelectron angular distributions: Nonperturbative calculations on NO [J].