  New method for dissociation of diatomic molecule based on nonperiodic
excitation generated by energy-feedback control mechanism is proposed. The
energy-feedback control uses frequency-energy (FE) relation of the natural
oscillations to fulfill the resonance conditions at any time of excitation.
  Efficiency of the proposed method is demonstrated by the problem of
dissociation of hydrogen fluoride (HF) molecule. It is shown that new method is
more efficient then methods based on constant frequency and linear chirping
excitation.
