The generation of an electromagnetic pulse (EMP) from a femtosecond laser induced plasma channel was studied. The radiation pressure force of the light string caused a dipole moment in the channel which generated EMP. The induced dipole moment subsequently oscillated at the plasma frequency and radiated an electromagnetic pulse. The characteristic field strengths and the spectrum of the EMP were also analyzed.
|Original language||English (US)|
|Number of pages||4|
|Journal||Physical review letters|
|State||Published - Nov 19 2001|
ASJC Scopus subject areas
- Physics and Astronomy(all)