Laser-Matter Interaction Above the Plasma Ignition Threshold Intensity

The MAGO concept using the thermonuclear target with DT gas preliminary heating up to kiloelectronvolt range temperatures, which sufficiently enables the reduction of requirements of the compression rate (to 10 km/s) and the compression degree (to several hundreds) of the target, is investigated. The MAGO chamber with the Laval supersonic annular nozzle is used for plasma preheating. In this chamber magnetized plasma is accelerated up to 1000-km/s velocities and heated by collisionless shock waves. Systems with liner and magnetic compression are considered for the subsequent plasma compression. Energizing of a real-size system can be supplied by the magnetic flux compression generators with energy 100−500 MJ. Experiments close to the threshold of ignition can be conducted proportionally in 2−3 times reduced systems. Then the energy required will be 10–30 times less than in a real-size system.

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2D modeling of laser-induced plume expansion near the plasma ignition threshold

Laser Ablation ◽

10.1016/b978-0-444-82412-7.50018-3 ◽

1996 ◽

pp. 76-81

Author(s):

H.C. Le ◽

J. Vuillon ◽

D. Zeitoun ◽

W. Marine ◽

M. Sentis ◽

...

Keyword(s):

Plume Expansion ◽

2D Modeling ◽

Plasma Ignition ◽

Ignition Threshold

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Plasma ignition threshold disparity between silver nanoparticle-based target and bulk silver target at different laser wavelengths

Plasma Science and Technology ◽

10.1088/2058-6272/aadf7e ◽

2018 ◽

Vol 21 (1) ◽

pp. 015502 ◽

Cited By ~ 2

Author(s):

A M EL SHERBINI ◽

M M HAGRASS ◽

M R M RIZK ◽

E A EL-BADAWY

Keyword(s):

Silver Nanoparticle ◽

Plasma Ignition ◽

Bulk Silver ◽

Ignition Threshold ◽

Silver Target

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2D modeling of laser-induced plume expansion near the plasma ignition threshold

Applied Surface Science ◽

10.1016/0169-4332(95)00469-6 ◽

1996 ◽

Vol 96-98 ◽

pp. 76-81 ◽

Cited By ~ 11

Author(s):

H.C. Le ◽

J. Vuillon ◽

D. Zeitoun ◽

W. Marine ◽

M. Sentis ◽

...

Keyword(s):

Plume Expansion ◽

2D Modeling ◽

Plasma Ignition ◽

Ignition Threshold

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Expansion of laser-generated plumes near the plasma ignition threshold

Analytical Chemistry ◽

10.1021/ac00004a004 ◽

1991 ◽

Vol 63 (4) ◽

pp. 314-320 ◽

Cited By ~ 77

Author(s):

Laszlo. Balazs ◽

Renaat. Gijbels ◽

Akos. Vertes

Keyword(s):

Plasma Ignition ◽

Ignition Threshold

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Determination of plasma ignition threshold fluence during femtosecond single-shot laser ablation on metallic samples detected by optical emission spectroscopy

Journal of Analytical Atomic Spectrometry ◽

10.1039/c5ja00076a ◽

2015 ◽

Vol 30 (8) ◽

pp. 1730-1735 ◽

Cited By ~ 7

Author(s):

Marina López-Claros ◽

José M. Vadillo ◽

J. Javier Laserna

Keyword(s):

Laser Ablation ◽

Emission Spectroscopy ◽

Optical Emission Spectroscopy ◽

Femtosecond Laser Ablation ◽

Optical Emission ◽

Single Shot ◽

Threshold Fluence ◽

Plasma Ignition ◽

Ignition Threshold

The minimum laser fluence needed for plasma ignition on a sample during single-shot femtosecond laser ablation has been determined for a set of metals and alloys.

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