Observation of Relativistic and Charge-Displacement Self-Channeling of Intense Subpicosecond Ultraviolet (248 nm) Radiation in Plasmas
ILLINOIS UNIV AT CHICAGO CIRCLE DEPT OF PHYSICS
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Experimental studies examining a new relativistic regime of high-intensity short-pulse propagation in plasmas have been performed that present evidence for the formation of a stable mode of spatially confined channeled propagation. For an electron density of approx. 1.35 x 10exp 21 cmexp -3 and a power of approx. 3 x 10exp 11 W the results indicate a channel radius less than 1 micrometer and a peak intensity of approx. 10exp 19 Wsq cm. Comparison of these findings with a dynamical theory yields agreement for both the longitudinal structure and the radial extent of the propagation observed.
- Lasers and Masers
- Plasma Physics and Magnetohydrodynamics