No abstract

No abstract

No abstract

Measurements of the effects of a weak axial magnetic field on the output energy of a CuCl double-pulse laser have been made. It was anticipated that the application of a weak 290-G magnetic field could serve to stabilize the discharge in the laser tube and to, therefore, increase the output energy of the laser. Such increases were observed for large values of the delay time between the two successive electrical discharges but not for the optimum delay of 175 μsec, and a reduction in the output of the laser occurs for very small time delays. The mechanism by which the magnetic field enhances (or reduces) the laser output is not presently well understood but two alternatives are discussed.

An investigation of the two output energies at 5106 and 5782 Å of a CuCl double-pulse laser has shown that the two have different dependences on the delay between pulses. The 5782-Å transition, normally the lower-gain and lower-power one, becomes dominant at small values of the delay time between pulses. This effect is observable at all values of the CuCl vapor pressure but is especially obvious at low CuCl concentration. This differential dependence is attributed to the difference between the relaxation times of the two metastable Cu laser terminal states.