We consider a problem on behaviour of narrow-forbidden band semiconductors in external crossed laser and constant magnetic field and propose the new numeric algorithm for solution of Dirac type equation of two-band approximation and calculation of probabilities for two-photon magnetic absorption. The similar numeric algorithm is developed to calculate the characteristics of multi-photon absorption and ionization in the atomic systems within the new approach, which is based on the relativistic perturbation theory method and S-matrix adiabatic Gell-Mann and Low formalism. As example a calculation of probability of the two-photon detachment in some negative ions is carried out.

  Якщо, ви не знайшли інформацію про автора(ів) публікації, маєте бажання виправити або відобразити більш докладну інформацію про науковців України запрошуємо заповнити "Анкету науковця"