Detachment instability of self-sustained volume discharge in active media of non-chain HF(DF) lasers

Self-sustained volume discharge in mixtures of SF6 with hydrocarbons, hydrogen and deuterium for non-chain HF(DF) lasers

“…The problem of the SIVD stability for electrochemical non-chain HF(DF) lasers was touched upon in a number of papers (see, e.g. [43][44][45][46][47][48][49][50]58]). As a result, basic scaling lows have been established for these lasers [37] and a number of relevant mechanisms have been qualitatively considered [46,58].…”

“…[43][44][45][46][47][48][49][50]58]). As a result, basic scaling lows have been established for these lasers [37] and a number of relevant mechanisms have been qualitatively considered [46,58]. Below, an analytical theory of the so-called 'detachment' ionization instability arising in the SF 6 -based working media of HF(D) lasers at enhanced gas temperatures is given.…”

Investigation on pulsed discharge mode in SF6-C2H6 mixtures

“…22 (2020) discharge. Belevtsev et al [11][12][13][14][15] investigated the stability of SSVD in different mixtures for non-chains HF laser and concluded that the collision dissociation of electron-anion may lead to SSVD instability because the electron collision dissociation rate and electron-ion recombination rate limited the SSVD current density. Apollonov et al [16][17][18][19] named the self-initiated volume discharge (SIVD) mode, which was no need to pre-ionize the gas whatsoever when smallscale (∼50 μm) inhomogeneities were deposited on the cathode surface, that greatly improved the pulsed output energy of HF laser.…”