Carrier concentration Electron density measurement 24 Electrons 18 Chemical bonds 12 Electron temperature 10 Probes 10 Molecular dynamics 8 Poisson equation 8 Topology 8 X ray lasers 8 Atmospheric pressure 6 Atomic physics 6 Electron densities 6 Interferometry 6 Kinetic equilibrium 6 Large deviations 6 Molecular systems 6 Plasma jets 6 Plasmas 6 Acetylene 4 Approximation theory 4 Atoms 4 Average field 4 Biasing voltages 4 Boundary layers 4 Breakdown threshold 4 Cold ions 4 Collision term 4 Collisionality 4 Correlation methods 4