Two-dimensional directional proton emission in dissociative ionization of H(2).
Phys Rev Lett
; 113(20): 203001, 2014 Nov 14.
Article
em En
| MEDLINE
| ID: mdl-25432039
ABSTRACT
An intense phase-controlled orthogonally polarized two-color ultrashort laser pulse is used to singly ionize and dissociate H_{2} into a neutral hydrogen atom and a proton. Emission-direction and kinetic-energy dependent asymmetric dissociation of H_{2} is observed as a function of the relative phase of the orthogonally polarized two-color pulse. Significant asymmetric proton emission is measured in the direction between two polarization axes. Our numerical simulations of the time-dependent Schrödinger equation reproduce many of the observed features. The asymmetry is attributed to the coherent superposition of two-dimensional nuclear wave packets with opposite parities, which have the same energies and overlap in the same emission directions.
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Base de dados:
MEDLINE
Assunto principal:
Prótons
/
Hidrogênio
/
Modelos Químicos
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article