Observation of a multiply ionized plasma with index of refraction greater than one

被引：50

作者：

Filevich, J ^{[1
]}

Rocca, JJ

Marconi, MC

Moon, SJ

Nilsen, J

Scofield, JH

Dunn, J

Smith, RF

Keenan, R

Hunter, JR

Shlyaptsev, VN

机构：

[1] Colorado State Univ, NSF ERC Extreme Ultraviolet Sci & Technol, Ft Collins, CO 80523 USA

[2] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA

[3] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[4] Univ Calif Davis Livermore, Dept Appl Sci, Livermore, CA 94451 USA

[5] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.94.035005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

共 19 条

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