László Nemes
Research Laboratory for Materials and Environmental Chemistry,
Chemical Research Center, Hungarian Academy of Sciences
H-1025 Budapest, Pusztaszeri út 59-67, Hungary
In YAG-laser-induced graphite plasmas the lines of ionized carbon atoms and the Swan bands of the C2 molecule can be observed in the visible spectral region (350-700 nm). On the basis of the intensity of the Swan bands of C2 the temperature of the plasma may be estimated. In addition blackbody radiation due to hot carbon particles and the Bremsstrahlung emission from the interaction of electrons and laser photons can also be observed. The problem why it is difficult to observe the emission from the C3 radical from such plasmas will be discussed.