Physical Conceptions of Developing High-Power Pulsed Chemical Layers on Photon-Branching Chain Reactions

Abstract

Since 1983 our research group had pursued an approach to the laser on photon branching chain reaction. If a chain reaction leading to stimulated emission can be initiated by the same photons and emission of photons exceeds their expense to initiate the reaction the process on the whole becomes self-sustained. This type of reaction can be considered as a reaction with photon branching mechanism, as opposed to the well-known material and energetic branching mechanism. Basing on photon branching reactions it is possible in the future to develop high power pure chemical pulsed laser systems. This approach can avoid many difficulties encountered with traditional pulsed laser systems in which one must use the external pumping source.

Some our previous results on modeling of oscillators and amplifiers employing reactions with photon branching in chemically active media containing ultradispersed particles are given in this work. To increase the energy amplification in one stage we offer to fulfil the photon branching reaction in the multipass telescopic resonator and the geometro-optical calculations of the cavity parameters are given. The optical scheme of a three-stage system with the energy amplification as high as 10⁶ is proposed. The technique of preparing the gasdispersed media with necessary parameters is discussed. We also report on the first successful experiments on preparation of the hydrogen-fluorine working mixture containing ultradispersed passivated particles of aluminium.