Coherent control for the spherical symmetric box potential in short and intensive XUV laser fields

Coherent control calculations are presented for a spherically symmetric box potential for non-resonant two photon transition probabilities. With the help of a genetic algorithm (GA) the population of the excited states are maximized and minimized. The external driving field is a superposition of three intensive extreme ultraviolet (XUV) linearly polarized laser pulses with different frequencies in the femtosecond duration range. We solved the quantum mechanical problem within the dipole approximation. Our investigation clearly shows that the dynamics of the electron current has a strong correlation with the optimized and neutralizing pulse shape.Comment: 11 Pages 3 Figure

INTERACTION OF DISLOCATIONS AND GRAIN BOUNDARIES IN Al FILMS

Les joints de grains des couches minces d'aluminium déposées sous vide sont facettés. Ils contient bien des dislocations. Les dislocations sont produites par les tensions thermiques. Elles passent d'un grain à l'autre. Les irrégularités de surface auprès des joints de grains produisent la formation de segments de dislocations au-dessous des collines sur les couches d'aluminium.The grain boundaries of vacuum deposited Al films are faceted and contain many dislocations. The dislocations originate from thermal stresses mostly and move from boundary to boundary. Surface irregularities at grain boundaries resulted in the formation of dislocation segments under the hills on Al films

Ultra-Hard Coatings from Titanium-Boron Nitride Multilayers and by Co-Sputtering

Abstract not availableNA-NOT AVAILABL