CRC 1316 Transient Atmospheric Plasmas: From Plasmas to Liquids To Solids

A1 A2 A3 A4 A5 A6 A7 A8 A9 B1 B2 B4 B5 B7 B8 B11 B12 B13 B14 B15 INF MGK PR

A1: Sub-ns electric field measurement in transient atmospheric pressure plasmas

Principal Investigators: U. Czarnetzki, N. Lepikhin


Czarnetzki, Uwe
(Principal Investigator)

Luggenhölscher, Dirk
(Principal Investigator)

Lepikhin, Nikita
(Principal Investigator)



One of the most important parameters determining gas discharge plasmas is the reduced electric field E/N. The electric field controls the electron energy distribution function (EEDF) and, consequently, the pathways of electron energy losses, which have strong influence on the active species yield of the discharge. Thus, measurements of E/N in the discharge are a subject of prime interest in the study of gas discharges. Picosecond Electric-Field Induced Second Harmonic generation (E-FISH) is used as an experimental means to measure model-independent the electric field in atmospheric pressure plasmas. These measurements are supplemented by sub-ns resolved optical emission measurements and electrical measurements of the current and voltage of the discharge.