Fourier-Space Nonlinear Rayleigh-Taylor Growth Measurements of 3D Laser-Imprinted Modulations in Planar Targets
Journal Article
·
· Physical Review Letters
Nonlinear growth of 3-D broadband nonuniformities was measured near saturation levels using x-ray radiography in planar foils accelerated by laser light. The initial target modulations were seeded by laser nonuniformities and later amplified during acceleration by Rayleigh-Taylor instability. The nonlinear saturation velocities are measured for the first time and are found to be in excellent agreement with Haan predictions. The measured growth of long-wavelength modes is consistent with enhanced, nonlinear, long-wavelength generation in ablatively driven targets.
- Research Organization:
- Laboratory for Laser Energetics, University or Rochester, Rochester, NY
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC52-92SF19460
- OSTI ID:
- 861033
- Report Number(s):
- DOE/SF/19460-642; 1602; 2005-36
- Journal Information:
- Physical Review Letters, Vol. 95
- Country of Publication:
- United States
- Language:
- English
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