Targets also affects Efield in the plasma

The plasma/surface itneraction can not be studied only by looking at the target since the plasma dynamic is strongly modified by the nature of target. Measurement of peak electric field are obtained from Stark shift technique

Properties of the target to be treated are modifiedd by the plasma but different targets are also changing essential parameter of the plasma itself, such as the electric field along the propagation. It is therefore crucial to elucidate how the electric field in the plasma changes above dielectric, metal or liquid targets representative of targets used for biomedical application or surface treatment.

Stark shift is a non intrusive powerful technique to obtain the peak electric field above targets.

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description of Stark shift

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