Note: Enhancement of the extreme ultraviolet emission from a potassium plasma by dual laser irradiation

Emission spectra from multiply charged potassium ions ranging from K(3+) to K(5+) have been obtained in the extreme ultraviolet (EUV) spectral region. A strong emission feature peaking around 38 nm, corresponding to a photon energy of 32.6 eV, is the dominant spectral feature at time-averaged electr...

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