Laser spectroscopic electric field measurement in krypton

被引：36

作者：

Kampschulte, T. ^{[1
]}

Schulze, J.

Luggenhoelscher, D.

Bowden, M. D.

Czarnetzki, U.

机构：

[1] Ruhr Univ Bochum, Inst Plasma & Atomphys, D-44780 Bochum, Germany

[2] Open Univ, Dept Phys & Astron, Milton Keynes MK7 6AA, Bucks, England

来源：

NEW JOURNAL OF PHYSICS | 2007年 / 9卷

关键词：

FLUORESCENCE-DIP SPECTROSCOPY; STARK SPECTROSCOPY; PLASMA; SHEATH; DIAGNOSTICS; DISCHARGES; ATOMS;

D O I：

10.1088/1367-2630/9/1/018

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A laser spectroscopic method for sensitive electric field measurements using krypton has been developed. The Stark effect of high Rydberg states of the krypton autoionizing series can be measured by a technique called fluorescence dip spectroscopy (FDS) with high spatial and temporal resolution. Calibration measurements have been performed in a reference cell with known electric field and they agree very well with numerical solutions of Schrodinger's equation for jl-coupled states. The application of this method has been demonstrated in the sheath region of a capacitively coupled radiofrequency (RF) discharge. The laser spectroscopic method allows us to add krypton as a small admixture to various low temperature plasmas.

引用

页数：21

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