Rr. Letfullin et Tf. George, Self-contained compact pulsed laser based on an auto-wave photon-branched chain reaction, APP PHYS B, 71(6), 2000, pp. 813-818
The possible construction of a self-contained and compact pulsed chemical H
F-laser based on an auto-wave photon-branched chain reaction initiated in a
gaseous disperse medium composed of H-2-F-2-O-2-He and Al particles by foc
used external IR radiation is theoretically substantiated. It is shown that
an autonomous system and minimization of the parameters of the main pulsed
HF-laser units are achievable due to both the effect of ignition of the la
ser-chemical reaction in an auto-wave regime under the condition of externa
l beam focusing and the effect of a huge laser energy gain of 10(11). These
effects provide strong reduction of the input pulse energy necessary for i
nitiation up to similar to 10(-8) J, and make it possible to construct a se
lf-contained laser with kilojoule output energy, which can be initiated by
a small submicrojoule master oscillator powered by an accumulator. Due to a
n increase in the general pressure of working gases up to P = 2.3 bar and o
ptimization of the parameters of the dispersed component (AI particles with
radius r(0) = 0.09 mum and concentration N-0 = 1.4 x 10(9) cm(-3)) and the
composition of the working mixture, the HF-laser system will ensure an out
put energy up to similar to 1.5 kJ in a pulse from the rather small volume
of similar to 2 L of the active medium.