Extension of the basis generator method for application to laser-molecule interactions

Abstract

We present an extension of the basis generator method, which was successfully used for ion-atom collisions in previous works, and apply it to a laser-molecule problem. As test system, we have chosen the one-electron, diatomic and asymmetric molecule $\mathrm{He}{\mathrm{H}}^{2+}$ in a short (approximately fs) intense laser field. Due to the asymmetry of the molecule, excitation and ionization probabilities are different if the main peak of the laser pulse is parallel or antiparallel to the molecular dipole moment. Our results are in fair agreement with previous calculations for this system.