High-Harmonic Homodyne Detection of the Ultrafast Dissociation of Br2 Molecules

被引：34

作者：

Woerner, H. J. ^{[1
]}

Bertrand, J. B.

Corkum, P. B.

Villeneuve, D. M.

机构：

[1] Natl Res Council Canada, Joint Lab Attosecond Sci, Ottawa, ON K1A 0R6, Canada

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 10期

基金：

瑞士国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

GENERATION; DIFFRACTION; DYNAMICS;

D O I：

10.1103/PhysRevLett.105.103002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the time-resolved observation of the photodissociation of Br-2 using high-harmonic generation (HHG) as a probe. The simultaneous measurement of the high-harmonic and ion yields shows that high harmonics generated by the electronically excited state interfere with harmonics generated by the ground state. The resulting homodyne effect provides a high sensitivity to the excited state dynamics. We present a simple theoretical model that accounts for the main observations. Our experiment paves the way towards the dynamic imaging of molecules using HHG.

引用

页数：4

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