Title :
Cathode spot energy transfer simulated by a focused laser beam
Author :
Vogel, Nadja ; Hoft, Hans
Author_Institution :
Tech. Univ. of Karl-Marx-Stadt, West Germany
fDate :
10/1/1989 12:00:00 AM
Abstract :
Minimum conditions for the formation of surface craters by laser irradiation were studied experimentally and theoretically for various metals. The critical power density for crater formation within 20 ns was about 1011 W/m2. It is therefore concluded that crater formation by ion bombardment requires an ion current density on the order of 1010 A/m2
Keywords :
laser beam effects; plasma-wall interactions; 20 ns; cathode spot energy transfer; crater formation; critical power density; focused laser beam; ion bombardment; ion current density; laser irradiation; simulation; surface craters; Cathodes; Current density; Energy exchange; Gold; Laser beams; Laser theory; Optical pulses; Power lasers; Surface emitting lasers; Temperature;
Journal_Title :
Plasma Science, IEEE Transactions on
