One-parameter control of quantum dynamics using femtosecond pump-probe photoelectron spectroscopy on a model system

FEMTOSECOND LASER PHOTOELECTRON SPECTROSCOPY ON ATOMS AND SMALL MOLECULES: Prototype Studies in Quantum Control

“…Using kinetic energy time-of-flight mass spectroscopy in a one-color (341.5 nm) pump-probe scheme (75), the dynamics of the wavepacket on the Na 2 double-minimum state was mapped. Applying time-resolved photoelectron detection in another one-color (340 nm) pump-probe experiment has shown that the ionization at the outer turning point is favored, but no direct comparison with time domain simulations was performed (76).…”

Experimental Coherent Laser Control of Physicochemical Processes

“…Photoelectron spectroscopy, where the electron being ejected during ionization is detected and its energy is resolved, is one such powerful method. Photoelectron spectroscopy has already been used in some coherent control experiments. − In all cases, the spectroscopic information provided by the method has been essential for the proper interpretation of the result. Coincidence ion-imaging methods, as introduced by Continetti and Hayden, − can provide valuable information about photodissociation dynamics.…”

“…There are a number of coherent control experiments based on the use of two phase-locked pulses. These experiments are referenced in Table . ,,,− ,− Although most of these experiments use short laser pulses, some use broad bandwidth nanosecond pulses. , The interpretation of these experiments is as follows: the incident field generates a coherent superposition of vibronic states (a wave packet). The second pulse generates a second superposition of vibronic states.…”

Laser control of physicochemical processes; experiments and applications

“…214 Phase modulation to control the excitation of Na 2 , studied by Baumert and coworkers, provided further evidence of the role that phase modulation can play in controlling wave packet dynamics and excitation. 215,216 Baumert has also studied two-photon excitation of sodium atoms 217 and control of the Autler-Townes component in the photoelectron spectrum of sodium. [218][219][220][221][222] The Corkum group has provided some of the most creative uses of lasers to control molecular dynamics and reactions.…”