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Bright X-Ray Sources from Laser-Driven Nanostructured Plasmas

Name
Alexander
Surname
Pukhov
Scientific organization
University of Dusseldorf
Academic degree
Dr., Professor
Position
Professor
Scientific discipline
Physics & Astronomy
Topic
Bright X-Ray Sources from Laser-Driven Nanostructured Plasmas
Abstract
As the laser technology continues its spectacular development, ever higher field intensities and power levels become accessible in laboratories. The laser pulse quality is greatly improved so that fine structured targets maintain their structure till the main pulse arrival. This opens new and unexpected possibilities for laser-plasma engineering towards new physics.
Keywords
plasma simulation, laser-plasma interaction, x ray sources
Summary

As the laser technology continues its spectacular development, ever higher field intensities and power levels become accessible in laboratories. The ELI project opens new horizons for laser applications in ultra-bright sources of short wavelength radiation. At the same time, the laser pulse quality – like the contrast ratio – is greatly improved so that fine structured targets maintain their structure till the main pulse arrival. This opens new and unexpected possibilities for laser-plasma engineering towards new physics.

In the talk, we consider laser pulse interaction with nano- and micro-structured targets like nano-grass [1] and micro-channels [2] in the intensity range 1018-1020 W/cm2. At intensities higher than 1022 W/cm2, the radiation damping force becomes important and can exceed the Lorentz force acting on an electron [3]. The g-ray emission is then the major channel of laser energy absorption [4].

References:

  1. MA Purvis, VN Shlyaptsev, R Hollinger, C Bargsten, A Pukhov, et al. Nature Photonics 7, 796 (2013)
  2. Longqing Yi, Alexander Pukhov, Phuc Luu-Thanh, and Baifei Shen, Phys. Rev. Lett. 116, 115001 (2016)
  3. LL Ji, A Pukhov, IY Kostyukov, BF Shen, K Akli Physical review letters 112, 145003 (2014)
  4. LL Ji, A Pukhov, EN Nerush, IY Kostyukov, BF Shen, KU Akli Physics of Plasmas 21, 023109 (2014)