Features of energy flux distribution under the condition of quasi–nondiffraction light beams propagation in absorbing media

Interaction of the quasi-nondiffraction beam with semi-infinite medium has been investigated. It has been shown that in case when we deal with absorbing medium, new features of energy flux behavior and the spatial profile of heat generation occurre. Such behavior of energy flux isn’t typicall for plane wave or Gaussian beam. The combination of the detected features, suppressed diffraction divergence of beam, self-reconstruction phenomenon is of interest of laser technologies and diagnostics.