Control of charge migration in molecules by ultrashort laser pulses

• Verfasst von: Golubev, Nikolay V. [VerfasserIn]
• Verfasst von: Kuleff, Alexander I. [VerfasserIn]
• Titel: Control of charge migration in molecules by ultrashort laser pulses
• Verf.angabe: Nikolay V. Golubev and Alexander I. Kuleff
• E-Jahr: 2015
• Jahr: 20 May 2015
• Fussnoten: Gesehen am 27.07.2020
• Titel Quelle: Enthalten in: Physical review / A
• Ort Quelle: College Park, Md., 1970
• Jahr Quelle: 2015
• Band/Heft Quelle: 91(2015,5) Article: 051401(R), 5 Seiten
• ISSN Quelle: 1094-1622
• DOI: doi:10.1103/PhysRevA.91.051401
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1725577321

Abstract

Due to electronic many-body effects, the ionization of a molecule can trigger ultrafast electron dynamics appearing as a migration of the created hole charge throughout the system. Here we propose a scheme to control the charge-migration dynamics with a single ultrashort laser pulse. We demonstrate by fully ab initio calculations on a molecule containing a chromophore and amine moieties that simple pulses can be used to stop the charge-migration oscillations and localize the charge on the desired site of the system. We argue that this control may be used to predetermine the follow-up nuclear rearrangement and thus the molecular reactivity.