Comparison of ions mass-spectra and terahertz radiation from low-inductive vacuum sparks with laser initiation

Abstract

The relationship between the parameters of the ion component of vacuum spark plasma with a laser initiation and the power of the studied plasma terahertz radiation was experimentally investigated. For this purpose, ion fluence was studied using a time-of-flight mass spectrometer with a magnetic analyzer. Analysis of the ion mass spectra suggested a non-linear power-law dependence of the terahertz radiation power on the electron concentration in the spark plasma. The experimental results are compared with the results of studying the generation of terahertz radiation in beam-plasma experiments.