Electron heating and radiation in high aspect ratio sub-micron plasma generated by an ultrafast Bessel pulse within a solid dielectric

Abstract

When propagating inside dielectrics, an ultrafast Bessel beam creates a high aspect-ratio cylinder of plasma with nanometric diameter that extends over several tens of micrometers to centimeters. We analyze the interaction between the intense ultrafast laser pulse and the plasma rod using particle-in-cell simulations. We show that electrons are heated and accelerated up to keV energies via transit acceleration inside the resonance lobes in the vicinity of the critical surface and compute their radiation pattern.

arXiv comment5 pages, 3 figures. The European Physical Journal Special Topics (2022)

References in corpus (6)

• Single shot ultrafast laser processing of high-aspect ratio nanochannels using elliptical Bessel beams
• Extremely high-aspect-ratio ultrafast Bessel beam generation and stealth dicing of multi-millimeter thick glass
• High-quality Tailored-edge Cleaving Using Aberration-corrected Bessel-like Beams
• Micro-Raman spectroscopy of ultrashort laser induced microexplosion sites in silicon
• Generation of a Bessel beam in FDTD using a cylindrical antenna
• High energy density plasma mediated by collisionless resonance absorption inside dielectrics