Photoluminescence and terahertz emission from femtosecond laser-induced plasma channels

被引：33
|
作者：
Hoyer, W [1 ]
Knorr, A
Moloney, JV
Wright, EM
Kira, M
Koch, SW
机构：
[1] Univ Arizona, Arizona Ctr Math Sci, Tucson, AZ 85721 USA
[2] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA
[3] Univ Marburg, Dept Phys, D-35032 Marburg, Germany
[4] Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.94.115004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Luminescence as a mechanism for terahertz emission from femtosecond laser-induced plasmas is studied. By using a fully microscopic theory, Coulomb scattering between electrons and ions is shown to lead to luminescence even for a spatially homogeneous plasma. The spectral features introduced by the rod geometry of laser-induced plasma channels in air are discussed on the basis of a generalized mode-function analysis.
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页数：4
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