Abstract
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.
Original language | English (US) |
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Article number | 115004 |
Journal | Physical review letters |
Volume | 94 |
Issue number | 11 |
DOIs | |
State | Published - Mar 25 2005 |
ASJC Scopus subject areas
- General Physics and Astronomy