Strong Field Multiple Ionization as a Route to Electron Dynamics in a van derWaals Cluster

被引：16

作者：

Wu, J. ^{[1
]}

Gong, X. ^{[1
]}

Kunitski, M. ^{[2
]}

Amankona-Diawuo, F. K. ^{[3
]}

Schmidt, L. Ph H. ^{[2
]}

Jahnke, T. ^{[2
]}

Czasch, A. ^{[2
]}

Seideman, T. ^{[3
]}

Doerner, R. ^{[2
]}

机构：

[1] E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China

[2] Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany

[3] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 08期

关键词：

PHOTOELECTRON ANGULAR-DISTRIBUTIONS; INTENSE LASER FIELDS; ENHANCED IONIZATION; MOLECULAR IONIZATION; DIATOMIC-MOLECULES; PULSES; STATE; IONS;

D O I：

10.1103/PhysRevLett.111.083003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the order in which a strong laser field removes multiple electrons from a van derWaals (vdW) cluster. The N2Ar, with an equilibrium T-shaped geometry, contains both a covalent and a vdW bond and serves as a simple yet rich example. Interestingly, the fragmenting double and triple ionizations of N2Ar with vdW bond breaking are favored when the vdW bond is aligned along the laser field polarization vector. However, the orientation of the covalent bond with respect to the laser field rules the triple ionization when both the covalent and vdW bonds are simultaneously broken. Electron-localization-assisted enhanced ionization and molecular orbital profile-dominated, orientation-dependent ionization are discussed to reveal the order of electrons release from different sites of N2Ar.

引用

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