Table 1: Main properties and parameters of the HF-laser amplifier based on a PBCR. Here, and are the radius and concentration of the dispersed particles; and are the intensity and duration of the initiating radiation; and are the full (i.e., for the whole volume of the laser active medium) and the specific (i.e., per unit volume) energies of the output pulse of radiation; is the maximum generated power; is the energy gain factor; is the duration of the output pulse; is the output pulse duration at half of the maximum power; is the threshold intensity for optical breakdown of the active medium.

Observed effects and properties of the laser Calculated optimal laser parameters Output characteristics

Effect of autowave spreading of a PBCR throughout the volume of the active medium as self-supporting cylindrical zones of photon branchingRatio of the reagents as H2 : F2 = 1 : 2. The range of general pressures of the mixture is = 1–2.3 bar = 200–730 J/L

Effect of the giant laser energy gain of = / , where and are the output and input energies, respectively Ranges of Al particle radii and concentrations are, respectively: = 0.09–0.4  m and = 109–107 cm−3  ns  ns.

Autonomous generation: a self-contained laser can be initiated by a small submicrojoule master oscillator powered by an accumulatorPerformances of the master oscillator: input signal intensity  W/cm2, energy of the input pulse = 2.18 10−8 J, duration of the initiating pulse,  ns = / –1011

Property of compactness, which is determined by the performances of the main laser units: minimal linear sizes of the cavity, 13  ×  14  ×  14 cm3; minimal energy of the master oscillator, = 2.18 × 10−8 J; minimal initially excited volume, = 10−7 cm3. The volume of the active medium is about 2LGeometric parameters of the unstable telescopic cavity are as follows: number of passes, = 4; range of cavity lengths, 13–50 cm; range of magnification coefficients, = 1.5–2; diameter of the coupling aperture,  mmThe profile of the output pulse in the near-field zone is a torus, and in the far-field zone, the profile is Gaussian-like