PULSE BROADENING IN A MHD COPPER VAPOR LASER

Stimulated emission has been observed from an electrically accelerated copper plasma at 5106 and 5782 Å in a device employing a series of plasma guns which inject the vapor into the laser resonator. In addition to facilitating room temperature operation of a copper laser, this technique provides a flowing active medium which has extended the pulse duration by more than four-fold over that originating from a stationary vapor.