Femtosecond laser-induced sub-wavelength plasma inside dielectrics: I. Field enhancement

@article{Ardaneh2022FemtosecondLS,
  title={Femtosecond laser-induced sub-wavelength plasma inside dielectrics: I. Field enhancement},
  author={Kazem Ardaneh and Remi Meyer and Mostafa E. Hassan and R. Giust and Benoit Morel and Arnaud Couairon and G. Bonnaud and Francois Courvoisier},
  journal={Physics of Plasmas},
  year={2022}
}
The creation of high-energy-density ([Formula: see text] joules per cm3) over-critical plasmas in a large volume has essential applications in the study of warm dense matter, being present in the hot cores of stars and planets. It was recently shown that femtosecond Bessel beams enable creating over-critical plasmas inside sapphire with sub-wavelength radius and several tens of micrometers in length. Here, the dependence of field structure and absorption mechanism on the plasma density… 
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