Interferences and asymmetries in laser-assisted photoionization of diatomic molecules

BOLL, DIEGO IVÁN RENÉ; FOJÓN, OMAR ARIEL

PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS

AMER PHYSICAL SOC

Lugar: New York; Año: 2014 vol. 90 p. 53414 - 53414

1050-2947

Several kinds of interference effects in laser-assisted photoionization of H2 + molecular targets are theoretically investigated by means of a Coulomb-Volkov model. The photoelectron angular distributions in the single-photonionization reaction are compared to more elaborated results, and the influence of usual approximations are studied. Several configurations of pulses and assistant lasers are considered. Moreover, we show that previousinterference effects predicted for monochromatic pulses could be enhanced and/or diminished leading to a directional selectivity of photoelectron emission. Finally, we analyze the influence of the pulse duration on thephotoelectron spectrum.