Thomson scattering diagnostics of atmospheric plasmas in contact with ionic liquids

摘要

Laser Thomson scattering has been applied to a nonequilibrium atmospheric plasma in contact with an ionic liquid to measure both electron density (n_e) and electron temperature (T_e). The discharge plasma was produced between a needle and a plane ionic-liquid electrode separated by a 3 mm gap. In comparison with a conventional metal electrode, distinct differences were found in spatial profiles of n_e and T_e of the plasma produced with the ionic-liquid electrode.