Theoretical study of spin polarization in multiphoton ionization of the HI molecule

Spin polarization in the multiphoton ionization of the HI molecule with intense 395 nm, circularly polarized laser pulses is investigated theoretically. To this end, we numerically solve the time-dependent Schrödinger equation in the basis of spherical spinors employing the time-dependent single-center method. We investigate the influence of the ionizing-pulse parameters, such as peak intensity, time envelope, and duration, as well as molecular orientation in space on the computed spin polarization of photoelectrons emitted by the multiphoton ionization of HOMO, HOMO-1, and HOMO-2 states of the molecule.