Green-yellow lasers in CuBr-AgBr-Ne systems operating at 40 kHz of repetition frequency

CuBr-AgBr-Ne lasers operating at 34-kHz repetition frequency, 15-kV charging voltage, with a 0.56-nF discharge peaking capacitor, and 1920 W of input power generated 13.5 W of average output power with a homemade simple laser tube 45-cm long with a 2.6-cm inner diameter. The power efficiency was, therefore, about 0.7%. The maximum repetition frequency was reached at 40 kHz. These results are qualitatively and theoretically interpreted by introducing two assumptions. First, the upper laser level enhancement by collisional energy transfer from a response of Ag atoms to a resonance state of Cu atoms, and second, the effective relaxation of lower laser levels by the plasma-chemistry recombination process of the Cu atoms in a metastable state with the Br ions. By taking into account the melting point as well as the dissociation energy of the chemicals, the reason for these experimental results is also explained