<title>Laser-induced phenomena in metals</title>

<title>Formation and dynamics of ordered nanometer structures and emission of photons from a rear surface of metal samples at the irradiating of frontal surface by laser pulse</title>

“…Experimentally is confirmed, that under all other equal conditions the intensity of luminescence is the more, the more is application velocity of the load and the is more, than more is initial density of dislocations in a researched sample E8, 13,14] In [14] at research of mechanoluminescence arising on the rear surface of a metal sample at irradiation the frontal surface by laser pulses ofthe same power was revealed, that with increase of number of irradiating laser pulses, the intensity of a mechanoluminescence decreases. The supposition was stated, that the decreasing of intensity of mechanoluminescence, is caused by gradual decreasing the number of dislocations during irradiation, which are capable to emerge on a surface of a metal sample.…”

“…The decreasing of number of dislocations which have emerged on a surface at cyclical loading, apparently, is connected with decreasing of quantity of dislocations in the surface layer of metal, the attaching energy of which is less, then the brought. Earlier it is established that the increase of energy of an irradiating pulse of the laser at repeated loading results in increase of intensity of photon emission [14]. Therefore, it is necessary to expect increase of number of formed defects on a surface.…”