Resonant upconversion of λ=1.06 μm radiation in rubidium vapors |
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Authors: | V A Kiyashko A K Popov V P Timofeev G V Yurov |
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Institution: | 1. Physikalisch-Technische Bundesanstalt, Institut Berlin, Abbestrasse 2-10, D-1000, Berlin 10
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Abstract: | The influence of the laser-pulse length of the vuv-radiation emission of a laserproduced plasma has been investigated between 30 and 80 nm. The plasma was produced by focussing the beam of a Nd: YAG/glass laser system (λ=1064 nm,E≈300 mJ) on an uranium target. The laser pulse duration was varied between 11 and 60 ns full width at half maximum (FWHM) while keeping the laser pulse energy constant. A wavelength dependent correlation between laser-pulse length and the time duration of the vuv-radiation emission of the plasma was observed. The time duration of the vuv-radiation emitted by the laserproduced plasma was in the same order (15–50 ns FWHM), as the laser pulse length. With increased wavelengths of observation or increased laser-pulse length longer vuv-radiation emission was found. |
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