Experimental observation of radiation from cherenkov wakes in a magnetized plasma.
Phys Rev Lett
; 89(6): 065003, 2002 Aug 05.
Article
de En
| MEDLINE
| ID: mdl-12190591
ABSTRACT
A proof-of-principle experiment demonstrates the generation of radiation from the Cherenkov wake excited by an ultrashort- and ultrahigh-power pulse laser in a perpendicularly magnetized plasma. The frequency of the radiation is in the millimeter range (up to 200 GHz). The intensity of the radiation is proportional to the magnetic field intensity as expected by theory. Polarization of the emitted radiation is also detected. The difference in the frequency of the emitted radiation between these experiments and previous theory can be explained by the electrons' oscillation in the electric field of a narrow column of ions in the focal region.
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Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Phys Rev Lett
Année:
2002
Type de document:
Article
Pays d'affiliation:
Japon