Temperature and density measurement of an ultra short laser pulse driven carbon plasma by skin-layer ion emission analysis
Year: 2025
Type: article
Abstract: This study investigates the plasma properties induced by sub-10-fs laser pulses on carbon bulk targets in the sub 1018W/cm2 regime. Utilizing a Thomson parabola spectrometer, the keV ion emission resulting from skin-layer acceleration is measured. The retrieved spectra are evaluated using the Saha equations to deduce the transient plasma temperature and density in early states of the plasma. The results of the Saha solver, in agreement with experimental data, affirm the validity of a local thermodynamic equilibrium. Thereby, the temporal and spatially localized nature of the ion ejection mechanism is leveraged to obtain a snapshot of those parameters. In addition, a comparative analysis of carbon ion emissions and residual hydrogen ions offers insights into the plasma dynamics and possible future applications.
Source: Journal of Applied Physics
DOI: 10.1063/5.0265555
Institution: Heinrich Heine University Düsseldorf
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,500
OpenAlex ID: W4410408099