Emission properties of targets based on shock waves excited by pulsed laser radiationстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 7 июля 2021 г.
Аннотация:The results from studying extreme ultraviolet emission spectra of targets based on shock waves upon excitation by pulsed laser radiation are discussed in this work. A shock wave is formed during a head-on collision of supersonic gas jets formed by supersonic conical nozzles. For excitation, we used a Nd:YAG laser with λ = 1064 nm, τ = 5 ns and Eimp = 0.8 J. The investigated spectral range is 90–200 A. The emission spectra of Ar, Kr, N2 and CO2 are explored. The obtained emission spectra are decoded and the emitting ions determined. As a result, we are able to draw a conclusion regarding the applicability of these targets as sources of extreme ultraviolet radiation.