Abstract
We demonstrate efficient enhancement of soft X-ray (SXR) emission from molybdenum plasmas produced using dual pulse irradiation, in which 10-ns and 150-ps pre-pulses were followed by a 150-ps main pulse. The number of photons was observed to be 5.3 × 1016 photons/sr, which corresponded to a conversion efficiency of 1.5%/sr in λ = 2.34-4.38 nm region at a pulse separation time of 1 ns with the 150-ps pre-pulse. The conversion efficiency became 1.3 times as large as that produced by a single pulse. The results indicate the advantage of dual pulse irradiation using sub-ns pre-and main pulses to produce the bright plasmas required for applications such as laboratory based SXR microscopy.
Original language | English |
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Article number | 194103 |
Journal | Applied Physics Letters |
Volume | 109 |
Issue number | 19 |
DOIs | |
Publication status | Published - 2016 Nov 7 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)