Subpicosecond, electromagnetic pulses from intense laser-plasma interaction
Journal Article
·
· Physical Review Letters; (United States)
- Department of Physics, University of California at Berkeley, Berkeley, California 94720 (United States)
Laser pulses with a power of 10[sup 12] W and a duration of 10[sup [minus]13] s were focused onto both gas and solid targets. Strong emission of pulsed radiation at terahertz frequencies was observed from the resulting plasmas. The most intense radiation was detected from solid density targets and was correlated with the emission of MeV x rays and electrons. Results indicate that radiative processes in such plasmas are driven by ponderomotively induced space charge fields in excess of 10[sup 8] V/cm. This work constitutes the first direct observation of a laser-induced wake field.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5793618
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:17; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
DATA
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
ELECTRON EMISSION
EMISSION
EMISSION SPECTRA
ENERGY RANGE
EXPERIMENTAL DATA
FAR INFRARED RADIATION
FLUIDS
GASES
INFORMATION
INFRARED RADIATION
IONIZING RADIATIONS
LASER-PRODUCED PLASMA
MEV RANGE
NUMERICAL DATA
PLASMA
PULSES
RADIATION SOURCES
RADIATIONS
RESOLUTION
RESONANCE
SOLIDS
SPACE CHARGE
SPECTRA
TARGETS
TIME RESOLUTION
TIMING PROPERTIES
X RADIATION
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
DATA
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
ELECTRON EMISSION
EMISSION
EMISSION SPECTRA
ENERGY RANGE
EXPERIMENTAL DATA
FAR INFRARED RADIATION
FLUIDS
GASES
INFORMATION
INFRARED RADIATION
IONIZING RADIATIONS
LASER-PRODUCED PLASMA
MEV RANGE
NUMERICAL DATA
PLASMA
PULSES
RADIATION SOURCES
RADIATIONS
RESOLUTION
RESONANCE
SOLIDS
SPACE CHARGE
SPECTRA
TARGETS
TIME RESOLUTION
TIMING PROPERTIES
X RADIATION