Ion-Energy Dependence of Asymmetric Dissociation of D2 by a Two-Color Laser Field

被引：157

作者：

Ray, D. ^{[1
]}

He, F. ^{[1
]}

De, S. ^{[1
]}

Cao, W. ^{[1
]}

Mashiko, H. ^{[1
]}

Ranitovic, P. ^{[1
]}

Singh, K. P. ^{[1
]}

Znakovskaya, I. ^{[2
]}

Thumm, U. ^{[1
]}

Paulus, G. G. ^{[3
]}

Kling, M. F. ^{[1
,2
]}

Litvinyuk, I. V. ^{[1
,4
]}

Cocke, C. L. ^{[1
]}

机构：

[1] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA

[2] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[3] Inst Opt & Quantum Elect, D-07743 Jena, Germany

[4] Griffith Univ, Ctr Quantum Dynam, Nathan, Qld 4111, Australia

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 22期

基金：

美国国家科学基金会;

关键词：

PROBING MOLECULAR-DYNAMICS; COHERENT CONTROL; IONIZATION; PHOTODISSOCIATION; PULSES;

D O I：

10.1103/PhysRevLett.103.223201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two-color (800 and 400 nm) short (45 fs) linearly polarized pulses are used to ionize and dissociate D-2 into a neutral deuterium atom and a deuteron. The yields and energies of the ions are measured left and right along the polarization vector. As the relative phase of the two colors is varied, strong yield asymmetries are found in the ion-energy regions traditionally identified as bond softening, above-threshold dissociation and rescattering. The asymmetries in these regions are quite different. A model based on the dynamic coupling by the laser field of the gerade and ungerade states in the molecular ion accounts for many of the observed features.

引用

页数：4

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