KrF exciplexes formation in low temperature plasmas created in various gas mixtures
Year: 2025
Type: article
Abstract: Krypton fluoride exciplexes are short-lived species which can be generated in excited state. Excimers and exciplexes do not form stable molecules in the ground state and, for this reason, must be brought to an excited states in order to produce them. One method that can lead to the formation of exciplexes is a source based on gas targets and pulsed lasers. Our work focuses on mixture gases investigated using radiation pulses from Xe-He gas puff target and Laser Produced Plasma (LPP). UV/VIS spectroscopy was used in the 200 – 780 nm range as a diagnostic tool. The diatomic KrF species were observed in emission spectra, mainly in the KrF B and D states. The electron temperature and electron density of plasma containing the exciplexes were determined. The influence of relative intensities of the krypton emission lines and bands, as well as the changes in gas mixtures on the resulting spectra were analyzed. The results may provide new insights into KrF exciplexes, which have not been studied from this point of view for many years.
Source: Physics of Plasmas
DOI: 10.1063/5.0242447
Institution: Military University of Technology in Warsaw
Language: English
Topic: Atomic and Molecular Physics
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Awards: G5063889776, G8433255384
OpenAlex ID: W4407157383