Multi-wavelength excimer ultraviolet sources from a mixture of krypton and iodine in a dielectric barrier discharge

被引：0

作者：

J.-Y. Zhang

I.W. Boyd

机构：

[1] Electronic and Electrical Engineering,

[2] University College London,undefined

[3] Torrington Place,undefined

[4] London WC1E 7JE,undefined

[5] UK,undefined

来源：

Applied Physics B | 2000年 / 71卷

关键词：

PACS: 32.30.JC; 42.72.+h; 32.80.Rm; 34.90.+q;

D O I：

暂无

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学科分类号：

摘要：

New ultraviolet (UV) sources (excimer lamps) have been demonstrated using mixtures of krypton and iodine in a high-pressure dielectric barrier discharge to provide intense multi-wavelength radiation at λ=183 nm (atomic iodine line, 4P5/2?2P3/2), 191 nm (KrI*, B1/2?X1/2), 206 nm (atomic iodine line, 2P3/2?2P1/2), and 342 nm (I*2, D1/2?X1/2). The characteristics of the optical emission spectra of the atomic species and the excited dimers (excimers) formed for different total gas pressures and in the presence of a buffer gas have been investigated. The highest intensity, at 183 nm, is obtained at pressures up to 1 bar while the overall emission spectra can be controlled by adjusting the total pressure. The results show that these strong multi-wavelength lamps offer an interesting alternative to conventional UV sources.

引用

页码：177 / 179

页数：2