Observation of a multiply ionized plasma with index of refraction greater than one
Journal Article
·
· Physical Review Letters
OSTI ID:15011420
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 show that this results from the dominant contribution of low charge ions to the index of refraction. This usually neglected bound electron contribution can a.ect the propagation of soft x-ray radiation in plasmas and the interferometric diagnostics of plasmas for many elements.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15011420
- Report Number(s):
- UCRL-JRNL-207242
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Vol. 94
- Country of Publication:
- United States
- Language:
- English
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