Laser IR spectroscopy of HeH~+ and H_3~+ New approaches to stadard theory and experiment

摘要

The protonited helium molecular ion HeH~+ and the hydrogen molecular ion H_3~+ are investigated by the methods of laser IR spectroscopy in near IR region. The two types of lasers are used in experimental setup for planned experimental investigation of HeH~+ and H_3~+. The two modern theoretical conceptions are applied for the first time for the construction of effective Hamiltonian and effective dipole moments for ions under consideration: the linked ordered schemas of vibrational - rotational interactions and pseudoangular momentum for double degenerated mode of H_3~+ . Nonlinear sequence transformation methods are applicated for analysis of rotational and vibrational dependencies of effective Hamiltonian and effective dipole moments.