Creating Plasma with Lasers: Can It Be Done?

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SUMMARY

Creating plasma with lasers requires achieving extremely high temperatures and energy densities. While a small laser could theoretically generate plasma, practical applications currently necessitate larger systems, such as the SHIVA laser, which is capable of producing the required energy density. Continuous plasma generation demands even greater power density, making it a more challenging endeavor. The discussion emphasizes that size alone is not the determining factor; rather, the energy output and density are critical.

PREREQUISITES
  • Understanding of plasma physics
  • Knowledge of laser technology, specifically pulsed lasers
  • Familiarity with energy density concepts
  • Basic principles of thermodynamics related to temperature and phase changes
NEXT STEPS
  • Research the specifications and capabilities of the SHIVA laser system
  • Explore the principles of energy density in laser applications
  • Learn about continuous plasma generation techniques
  • Investigate the ionization process of air using pulsed lasers
USEFUL FOR

Physicists, laser engineers, and researchers in plasma technology who are interested in the practical applications and challenges of generating plasma with lasers.

Kalrag
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Ive been wonder how big a laser would have to be to make plasma. So, how big? if its not possible is there a variation that would produce plasma?

Thanks, Kalrag
 
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As my ex used to lie to me about, size doesn't matter.
You need the power to horrendously raise the temperature of a substance in order to form a plasma under normal pressure conditions. If you can achieve that in a laser the size of a rice grain, so much the better. Right now, though, I think that something on the scale of SHIVA is required.
 
Some lab size pulsed lasers can ionize air. What you need is sufficient energy density.

If you're looking at a continuous plasma, then you need sufficient power density, and yes this if harder to obtain.
 

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