Stimulated Raman Scatter From Laser Produced Plasmas PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Stimulated Raman Scatter From Laser Produced Plasmas PDF full book. Access full book title Stimulated Raman Scatter From Laser Produced Plasmas.
Author | : |
Publisher | : |
Total Pages | : 10 |
Release | : 1990 |
Genre | : |
ISBN | : |
Download Stimulated Raman Scatter from Laser-produced Plasmas Book in PDF, ePub and Kindle
Stimulated Raman scattering in plasmas is a three-wave instability with important practical consequences for laser fusion. Most studies of this process to date have focused on its threshold. Even the linear-theory threshold poses interesting problems; and observed thresholds have been difficult to interpret. However, with increasing evidence that this instability often becomes absolute, it has become appropriate to examine saturation mechanisms as well. A number of such mechanisms are discussed here, one of which has been reported to have a chaotic regime. 26 refs., 4 figs.
Author | : Keith Alexander Nugent |
Publisher | : |
Total Pages | : 390 |
Release | : 1984 |
Genre | : Laser plasmas |
ISBN | : |
Download Stimulated Raman Scattering and X-ray Emission from Laser-produced Plasmas Book in PDF, ePub and Kindle
Author | : Grant William John McIntosh |
Publisher | : |
Total Pages | : 256 |
Release | : 1987 |
Genre | : Raman spectroscopy |
ISBN | : |
Download A Study of Stimulated Raman Scattering in a CO2 Laser Produced Plasma Book in PDF, ePub and Kindle
Author | : Keith Stanley Bradley |
Publisher | : |
Total Pages | : 450 |
Release | : 1993 |
Genre | : |
ISBN | : |
Download An Experimental Investigation of Stimulated Brillouin Scattering in Laser-produced Plasmas Relevant to Inertial Confinement Fusion Book in PDF, ePub and Kindle
Author | : M. Salimullah |
Publisher | : |
Total Pages | : |
Release | : 1989 |
Genre | : |
ISBN | : |
Download Relativistic Stimulated Brillouin and Raman Scattering in a Laser-produced Plasma Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 12 |
Release | : 2002 |
Genre | : |
ISBN | : |
Download Studies of Stimulated Raman Scattering in Laser Plasma Interactions Book in PDF, ePub and Kindle
Coupled theoretical and computational work is presented aimed at understanding and modeling stimulated Raman backscattering (SRBS) relevant to laser-plasma interactions (LPIs) in large-scale, nearly homogeneous plasmas. We address the following five observed, nonlinear phenomena associated with SRBS: coupling of SRBS to Langmuir decay interactions (LDIs); cascading of LDI; SRS cascades; and stimulated electron acoustic wave scattering (SEAS). Keywords: Laser fusion; Laser-plasma interactions; Nonlinear Vlasov simulations; Parametric instabilities; Stimulated Raman scattering.
Author | : Laszlo Veisz |
Publisher | : |
Total Pages | : 112 |
Release | : 2008-04-01 |
Genre | : Science |
ISBN | : 9783836456562 |
Download Investigation of Parametric Instabilities in Femtosecond Laser-Produced Plasmas Book in PDF, ePub and Kindle
Laser-produced plasmas play an important role in plasma physics and fusion research. Parametric instabilities are the most important processes governing the laser-plasma interaction. Some parametric instabilities as two-plasmon decay or stimulated Raman scattering were investigated in this work using an optical signal, the so called 3/2 harmonics. As this harmonic originates from the plasma its characteristics provide important information about the plasma properties. The angular, spectral and temporal structure of this 3/2 harmonics were studied. Detailed theoretical analysis was made based on a new model to explain the measured results and to gain information about the generation process and the plasma.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2008 |
Genre | : |
ISBN | : |
Download Investigation of Stimulated Raman Scattering Using Short-pulse Diffraction Limited Laser Beam Near the Instability Threshold Book in PDF, ePub and Kindle
Short pulse laser plasma interaction experiments using diffraction limited beams provide an excellent platform to investigate the fundamental physics of Stimulated Raman Scattering. Detailed understanding of these laser plasma instabilities impacts the current inertial confinement fusion ignition designs and could potentially impact fast ignition when higher energy lasers are used with longer pulse durations (> 1 kJ and> 1 ps). Using short laser pulses, experiments can be modeled over the entire interaction time of the laser using particle-in-cell codes to validate our understanding quantitatively. Experiments have been conducted at the Trident laser facility and the LULI (Laboratoire pour l'Utilisation des Lasers Intenses) to investigate stimulated Raman scattering near the threshold of the instability using 527 nm and 1059 nm laser light respectively with 1.5-3.0 ps pulses. In both experiments, the interaction beam was focused into a pre-ionized He gas-jet plasma. Measurements of the reflectivity as a function of intensity and k[lambda]{sub D} were completed at the Trident laser facility. At LULI, a 300 fs Thomson scattering probe is used to directly measure the density fluctuations of the driven electron plasma and ion acoustic waves. Work is currently underway comparing the results of the experiments with simulations using the VPIC [K.J. Bowers, et at., Phys. Plasmas, 15 055703 (2008)] particle-in-cell code. Details of the experimental results are presented in this manuscript.
Author | : Leon J. Radziemski |
Publisher | : CRC Press |
Total Pages | : 474 |
Release | : 2020-09-11 |
Genre | : Technology & Engineering |
ISBN | : 1000147371 |
Download Lasers-Induced Plasmas and Applications Book in PDF, ePub and Kindle
This book discusses the physics of plasma initiation and reviews the features of dissipating, propagating plasmas. It deals with advances in diagnostics for high-energy, laser-fusion plasmas. The book reviews the basic physical processes, plasma characteristics of the "continuous optical discharge".
Author | : S. Ross |
Publisher | : |
Total Pages | : 8 |
Release | : 2005 |
Genre | : |
ISBN | : |
Download Characterization of High-Temperature Laser-Produced Plasmas Using Thomson Scattering Book in PDF, ePub and Kindle
Ultraviolet Thomson scattering has been fielded at the Omega Laser Facility to achieve accurate measurements of the plasma conditions in laser-produced high-temperature plasmas. Recent applications to hohlraum targets that have been filled with CH gas or SiO{sub 2} foams have demonstrated a new high temperature plasma regime of importance to laser-plasma interaction studies in a strongly damped regime such as those occurring in indirect drive inertial confinement fusion experiments. The Thomson scattering spectra show the collective ion acoustic features that fit the theory for two ion species plasmas and from which we infer the electron and ion temperature. We find that the electron temperature scales from 2-4 keV when increasing the heater beam energy into the hohlraum from 8-17 kJ, respectively. Simultaneous measurements of the stimulated Raman scattering from a green 527 nm interaction beam show that the reflectivity decreases from 20% to 1% indicating that this instability is strongly damped at high temperatures. These findings support green laser beams as possible driver option for laser-driven fusion experiments.