Femtochemistry in the electronic ground state: Dynamic Stark control of vibrational dynamics

被引：12

作者：

Shu, Chuan-Cun ^{[1
,2
]}

Thomas, Esben F. ^{[1
]}

Henriksen, Niels E. ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Chem, Bldg 207, DK-2800 Lyngby, Denmark

[2] Univ New South Wales, Sch Engn & Informat Technol, Canberra, ACT 2600, Australia

来源：

CHEMICAL PHYSICS LETTERS | 2017年 / 683卷

关键词：

Vibrational excitation; Dynamic Stark effect; Pulse shaping; FEMTOSECOND; DISSOCIATION;

D O I：

10.1016/j.cplett.2017.03.006

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：

We study the interplay of vibrational and rotational excitation in a diatomic molecule due to the non-resonant dynamic Stark effect. With a fixed peak intensity, optimal Gaussian pulse durations for maximizing vibrational or rotational transitions are obtained analytically and confirmed numerically for the H-2 and Cl-2 molecules. In general, pulse trains or more advanced pulse shaping techniques are required in order to obtain significant vibrational excitation. To that end, we demonstrate that a high degree of selectivity between vibrational and rotational excitation is possible with a suitably phase-modulated Gaussian pulse. (C) 2017 Elsevier B. V. All rights reserved.

引用

页码：234 / 239

页数：6

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