Active Spectroscopy

Apart from investigation the emission properties of plasmas more direct information can often be obtained by laser diagnostics.  This is a so-called active diagnostics as the laser light interacts with the plasma. Laser diagnostics are more demanding to set up but the interpretation of the experimental data is most often significantly easier than for passive optical emission spectroscopy.

The lab of EPG is equipped with an FTIR, several pulsed Nd YAG laser and dye lasers, ICCD and photo counting detectors which allow high resolution time and spatial resolved measurements of most of the plasma properties.

The different laser diagnostics at EPG are listed below