Laserinduzierte nichtadiabatische Prozesse in Molekülen: Theorie und Anwendungen

• Antragsteller: Professor Dr. Lorenz S. Cederbaum
• Fachliche Zuordnung: Theoretische Chemie: Elektronenstruktur, Dynamik, Simulation ; Optik, Quantenoptik und Physik der Atome, Moleküle und Plasmen
• Förderung: Förderung von 2011 bis 2019
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 206675520

• Erstellungsjahr: 2018

Zusammenfassung der Projektergebnisse

The light-induced nonadiabaticity couples in a controllable way different electronic states of the molecule and depending on the field intensity this coupling can be strong and extremely large in the vicinity of the LICIs. The nonadiabatic couplings become singular at the conical intersections (CIs). In contrast to the situation provided by natural CIs of field-free molecules, the LICI is controllable in the sense that the laser frequency determines its position in nuclear coordinate space and energy and the laser intensity the strength of the couplings. During our theoretical studies we have undoubtedly demonstrated that the LICIs can have a very strong impact on the spectroscopic and dynamical properties of diatomic molecules.

Projektbezogene Publikationen (Auswahl)

• Competition between Light-Induced and Intrinsic Nonadiabatic Phenomena in Diatomics. J. Phys. Chem. Lett., 8, 1624 (2017)
  A. Csehi, G. J. Halász, L. S. Cederbaum and Á. Vibók
  
• Communication: Substantial impact of the orientation of transition dipole moments on the dynamics of diatomics in laser fields. J. Chem. Phys. 149, 181101 (2018)
  P. Badankó, G. J. Halász, L. S. Cederbaum, Á. Vibók and A. Csehi
  
• Conical Intersections Induced by Quantum Light: Field-Dressed Spectra from the Weak to the Ultrastrong Coupling Regimes. J. Phys. Chem. Lett., 9, 6215 (2018)
  T. Szidarovszky, G. J. Halász, A. G. Császár, L. S. Cederbaum and Á. Vibók
  
• Direct Signatures of Light-Induced Conical Intersections on the Field- Dressed Spectrum of Na2. J. Phys. Chem. Lett., 9, 2239 (2018)
  T. Szidarovszky, G. J. Halász, A. G. Császár, L. S. Cederbaum and Á. Vibók