Lasing line excitation mechanism in a hollow cathode plasma

Abstract EN

In this work a hollow eathode discharge (HCD) system W'as designed and built.

An optical multichannel analyzer system (OMA 111) was utilized to investigate the plasma emission lines inside the discharge tube using a solid state photodiode array detector.

A computer program was built to convert the data from (OiMAIII) system into a personal computer through a serial port.

One of these spectral lines (the 6s 5 - جp D ؛,Cu II 851.1 nm transition) was found as a promising laser line.

The excitation mechanism of this line and the effect of discharge current on the variation of the relative intensities of the emitted line were studied.