Title :
Kinetic processes in electron beam-excited XeF (C40aA) laser media
Author :
Nighan, William L. ; Fowler, Michael C.
Author_Institution :
United Technol. Res. Center, East Hartford, CT, USA
fDate :
4/1/1989 12:00:00 AM
Abstract :
Fundamental processes affecting the operation and performance of electron beam-excited XeF(C to A) laser media have been analyzed and modeled. Emphasis has been placed on conditions typical of high current density ( approximately 250A cm/sup -2/), short pulse ( approximately 10 ns FWHM) e-beam excitation of high pressure ( approximately 6 atm) multicomponent mixtures comprised of Ar-Kr-Xe-NF/sub 3/-F/sub 2/. Computation of the temporal evolution of excited and ionized species for such circumstances has permitted identification of the factors controlling XeF(C) formation and loss, and has resulted in the identification of the primary transient species that absorb radiation in the blue-green spectral region. The data so obtained serve to explain measured XeF(C to A) properties, particularly net gain, under conditions for which the C to A laser energy density and efficiency values are comparable to those of the UV XeF(B to X) laser.<>
Keywords :
current density; electron beam effects; excimer lasers; gas mixtures; xenon compounds; 10 ns; 6 atm; Ar-Kr-Xe-NF/sub 3/-F/sub 2/; XeF; current density; efficiency values; electron beam-excited XeF laser media; high pressure multicomponent mixtures; ionized species; kinetic processes; laser energy density; primary transient species; temporal evolution; Current density; Density measurement; Electron beams; Energy measurement; Gain measurement; Ionizing radiation; Kinetic theory; Laser excitation; Laser modes; Performance analysis;
Journal_Title :
Quantum Electronics, IEEE Journal of
