SEMICONDUCTOR LASER PROPERTY TO FORM INTERRUPTING RADIATION AT THE MOMENT OF SWITCHING ON AND SWITCHING OFF OF THE PUMPING ELECTRIC CURRENT

Semiconductor laser property to form interrupting radiation at the moment of switching on and switching off of the pumping electric current, belonging to a field of semiconductor lasers physics is described. An amplitude modulation of radiation during the moments of switching of a pumping electric current has coherent character. The average period of fluctuations is determined by tens femtoseconds, the whole process duration is some tens picoseconds. The device can be used for the noncontact highspeed precision control of geometrical parameters of the items, various defects definition in optically transparent products. The result of the research is a basis for new directions in a laser tomography, the measuring technique, use of this property will essentially simplify laser and fiber-optical gyroscopes

SEMICONDUCTOR LASER PROPERTY TO FORM INTERRUPTING RADIATION AT THE MOMENT OF SWITCHING ON AND SWITCHING OFF OF THE PUMPING ELECTRIC CURRENT

Semiconductor laser property to form interrupting radiation at the moment of switching on and switching off of the pumping electric current, belonging to a field of semiconductor lasers physics is described. An amplitude modulation of radiation during the moments of switching of a pumping electric current has coherent character. The average period of fluctuations is determined by tens femtoseconds, the whole process duration is some tens picoseconds. The device can be used for the noncontact highspeed precision control of geometrical parameters of the items, various defects definition in optically transparent products. The result of the research is a basis for new directions in a laser tomography, the measuring technique, use of this property will essentially simplify laser and fiber-optical gyroscopes

THE INVESTIGATION OF THE INFLUENCE OF THE UNIT CONSTRUCTION AND THE PARAMETERS OF THE PROCESS OF THE MAGHETRON SPRAYING AND SPRAYING WITH ION BEAM ON FILMS STRUCTURE

The purpose of the work: the performance of the complex of investigations, directed to the improvement of the vacuum units. For the first time, the methods of constructing of spraying systems, combining in one technological volume and operating simultaneously the magnetron and ion-beam sources of the sprayed targets substance and ensuring the growth of the films with insignificant disorientation of grains on the substructures, made from the amorphic and polycrystalline materials, and alloying of the films in the course of its drowing have been developedAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio