Coherent Control of Internal Conversion in Strong-Field Molecular Ionization
Brian Kaufman, Tamás Rozgonyi, Philipp Marquetand, Thomas Weinacht
Abstract
We demonstrate coherent control over internal conversion during strong-field molecular ionization with shaped, few-cycle laser pulses. The control is driven by interference in different neutral states, which are coupled via non-Born-Oppenheimer terms in the molecular Hamiltonian. Our measurements highlight the preservation of electronic coherence in nonadiabatic transitions between electronic states.
Topics & Concepts
Coherent controlIonizationCoherence (philosophical gambling strategy)Born–Oppenheimer approximationHamiltonian (control theory)PhysicsAtomic physicsLaserInternal conversionField (mathematics)Excited electronic stateExcited stateQuantum mechanicsMoleculeSpectral lineIonPure mathematicsMathematicsMathematical optimizationLaser-Matter Interactions and ApplicationsSpectroscopy and Quantum Chemical StudiesAdvanced Fiber Laser Technologies