Generation and confinement of microwave gas-plasma in photonic dielectric microstructure

被引:26
|
作者
Debord, B. [1 ]
Jamier, R. [1 ]
Gerome, F. [1 ]
Leroy, O. [2 ]
Boisse-Laporte, C. [2 ]
Leprince, P. [2 ]
Alves, L. L. [3 ]
Benabid, F. [1 ]
机构
[1] Univ Limoges, CNRS, UMR 7252, GPPMM Grp,Xlim Res Inst, Limoges, France
[2] Univ Paris 11, CNRS, UMR 8578, Lab Phys Gaz & Plasmas, F-91405 Orsay, France
[3] Univ Tecn Lisboa, Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1096 Lisbon, Portugal
来源
OPTICS EXPRESS | 2013年 / 21卷 / 21期
关键词
DISCHARGE; COLUMN; FREQUENCY; GUIDANCE;
D O I
10.1364/OE.21.025509
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report on a self-guided microwave surface-wave induced generation of similar to 60 mu m diameter and 6 cm-long column of argon-plasma confined in the core of a hollow-core photonic crystal fiber. At gas pressure of 1 mbar, the micro-confined plasma exhibits a stable transverse profile with a maximum gas-temperature as high as 1300 +/- 200 K, and a wall-temperature as low as 500 K, and an electron density level of 10(14) cm(-3). The fiber guided fluorescence emission presents strong Ar+ spectral lines in the visible and near UV. Theory shows that the observed combination of relatively low wall-temperature and high ionisation rate in this strongly confined configuration is due to an unprecedentedly wide electrostatic space-charge field and the subsequent ion acceleration dominance in the plasma-to-gas power transfer. (C) 2013 Optical Society of America
引用
收藏
页码:25509 / 25516
页数:8
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