Physics
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrvl..94c5005f&link_type=abstract
Physical Review Letters, vol. 94, Issue 3, id. 035005
Physics
18
Dielectric Properties, Phase Shifting Interferometry, Plasma Production And Heating By Laser Beams, X-Ray And Gamma-Ray Measurements
Scientific paper
We present clear experimental evidence showing that the contribution of bound electrons can dominate the index of refraction of laser-created plasmas at soft x-ray wavelengths. We report anomalous fringe shifts in soft x-ray laser interferograms of Al laser-created plasmas. The comparison of measured and simulated interferograms shows that this results from the dominant contribution of low charge ions to the index of refraction. This usually neglected bound electron contribution can affect the propagation of soft x-ray radiation in plasmas and the interferometric diagnostics of plasmas for many elements.
Dunn Jennifer
Filevich Jorge
Hunter James R.
Keenan Ryan
Marconi Mario C.
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