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Investigation of the relation between the (3/2)omega 0 harmonic emission and filamentation

Technical Report ·
OSTI ID:6232860
Time-resolved spectra and other features of the (3/2)omega 0 harmonic emission have been investigated together with the filamentation effect in laser-produced plasmas for intensities between 2.5 x 10 to the 13th power and 10 to the 16th power W/sq cm. Temporal fine structures of the (3/2)omega 0 spectra were frequently found to be frequency shifted first to the red and then to the blue. This is consistent with a proposed unstable filamentation model, which described the frequency shift of the (3/2)omega 0 emission as coming mainly from the Doppler shift of the density contours inside the filament during their formation and collapse. (Copyright (c) Science and Engineering Research Council 1982.)
Research Organization:
Science Engineering Research Council, Chilton (UK). Rutherford Appleton Lab.
OSTI ID:
6232860
Report Number(s):
PB-83-166793
Country of Publication:
United States
Language:
English