The emission spectra of he plasma were measured by using three types of experiment devices: dielectric barrier discharge device, hollow-cathode discharge device and Penning discharge device.

A discharge model on the sputtering hollow cathode discharge (SHCD) copper ion laser is established, its characteristics of discharge, sputtering and the particle interaction processes are analysed.

The power has been used to conduct two sorts of experiments including both to restrain arc discharge and to control hollow cathode discharge.