High-intensity laser plasma interactions and fast ignition

2011 ◽  
Author(s):  
Vladimir T. Tikhonchuk ◽  
Theodor Schlegel
Keyword(s):  
Laser Plasma ◽  
High Intensity ◽  
Fast Ignition ◽  
Plasma Interactions ◽  
Laser Plasma Interactions ◽  
High Intensity Laser ◽  
Intensity Laser

scholarly journals High-repetition-rate ( kHz) targets and optics from liquid microjets for high-intensity laser–plasma interactions

2019 ◽  
Vol 7 ◽  
Author(s):  
K. M. George ◽  
J. T. Morrison ◽  
S. Feister ◽  
G. K. Ngirmang ◽  
J. R. Smith ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Repetition Rate ◽  
High Intensity ◽  
High Repetition Rate ◽  
Plasma Interactions ◽  
Laser Plasma Interactions ◽  
High Repetition ◽  
High Intensity Laser ◽  
Liquid Microjets ◽  
Intensity Laser

High-intensity laser–plasma interactions produce a wide array of energetic particles and beams with promising applications. Unfortunately, the high repetition rate and high average power requirements for many applications are not satisfied by the lasers, optics, targets, and diagnostics currently employed. Here, we aim to address the need for high-repetition-rate targets and optics through the use of liquids. A novel nozzle assembly is used to generate high-velocity, laminar-flowing liquid microjets which are compatible with a low-vacuum environment, generate little to no debris, and exhibit precise positional and dimensional tolerances. Jets, droplets, submicron-thick sheets, and other exotic configurations are characterized with pump–probe shadowgraphy to evaluate their use as targets. To demonstrate a high-repetition-rate, consumable, liquid optical element, we present a plasma mirror created by a submicron-thick liquid sheet. This plasma mirror provides etalon-like anti-reflection properties in the low field of 0.1% and high reflectivity as a plasma, 69%, at a repetition rate of 1 kHz. Practical considerations of fluid compatibility, in-vacuum operation, and estimates of maximum repetition rate are addressed. The targets and optics presented here demonstrate a potential technique for enabling the operation of laser–plasma interactions at high repetition rates.

scholarly journals Burst behavior due to the quasimode excited by stimulated Brillouin scattering in high-intensity laser–plasma interactions

2019 ◽  
Vol 7 ◽  
Author(s):  
Q. S. Feng ◽  
L. H. Cao ◽  
Z. J. Liu ◽  
C. Y. Zheng ◽  
X. T. He
Keyword(s):  
Laser Plasma ◽  
High Intensity ◽  
Brillouin Scattering ◽  
Low Frequency ◽  
Stimulated Brillouin Scattering ◽  
Plasma Interactions ◽  
Laser Plasma Interactions ◽  
High Intensity Laser ◽  
Stimulated Brillouin ◽  
Intensity Laser

The strong-coupling mode, called the “quasimode”, is excited by stimulated Brillouin scattering (SBS) in high-intensity laser–plasma interactions. Also SBS of the quasimode competes with SBS of the fast mode (or slow mode) in multi-ion species plasmas, thus leading to a low-frequency burst behavior of SBS reflectivity. Competition between the quasimode and the ion-acoustic wave (IAW) is an important saturation mechanism of SBS in high-intensity laser–plasma interactions. These results give a clear explanation of the low-frequency periodic burst behavior of SBS and should be considered as a saturation mechanism of SBS in high-intensity laser–plasma interactions.

High-intensity laser-plasma interactions in the refluxing limit

2008 ◽  
Vol 15 (5) ◽  
pp. 056308 ◽  
Author(s):  
P. M. Nilson ◽  
W. Theobald ◽  
J. Myatt ◽  
C. Stoeckl ◽  
M. Storm ◽  
...  
Keyword(s):  
Laser Plasma ◽  
High Intensity ◽  
Plasma Interactions ◽  
Laser Plasma Interactions ◽  
High Intensity Laser ◽  
Intensity Laser

Characterization of preformed plasmas with an interferometer for ultra-short high-intensity laser-plasma interactions

2004 ◽  
Vol 78 (7-8) ◽  
pp. 919-922 ◽  
Author(s):  
A. Sagisaka ◽  
H. Daido ◽  
K. Ogura ◽  
M. Mori ◽  
K. Matsukado ◽  
...  
Keyword(s):  
Laser Plasma ◽  
High Intensity ◽  
Plasma Interactions ◽  
Laser Plasma Interactions ◽  
High Intensity Laser ◽  
Intensity Laser

scholarly journals Reentrant cone angle dependence of the energetic electron slope temperature in high-intensity laser-plasma interactions

2007 ◽  
Vol 14 (5) ◽  
pp. 050701 ◽  
Author(s):  
M. Nakatsutsumi ◽  
R. Kodama ◽  
P. A. Norreys ◽  
S. Awano ◽  
H. Nakamura ◽  
...  
Keyword(s):  
Laser Plasma ◽  
High Intensity ◽  
Cone Angle ◽  
Energetic Electron ◽  
Plasma Interactions ◽  
Laser Plasma Interactions ◽  
Angle Dependence ◽  
High Intensity Laser ◽  
Intensity Laser

Bulk heating of solid-density plasmas during high-intensity-laser plasma interactions

2009 ◽  
Vol 79 (1) ◽  
Author(s):  
P. M. Nilson ◽  
W. Theobald ◽  
J. F. Myatt ◽  
C. Stoeckl ◽  
M. Storm ◽  
...  
Keyword(s):  
Laser Plasma ◽  
High Intensity ◽  
Plasma Interactions ◽  
Laser Plasma Interactions ◽  
Bulk Heating ◽  
Solid Density ◽  
High Intensity Laser ◽  
Intensity Laser
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