Speakers
Description
We investigate the dynamics of ionization in matter doped by gold nanoparticles under irradiation by short infrared pulses with intensities ~10^15−10^19 W/cm². Numerical modeling of the interaction between laser radiation and the medium with nanoparticles is conducted, various nanoparticles shapes are considered as resonant nanoantennas. A kinetic model is implemented with the EPOCH numerical software. The propagation of short pulses of infrared laser radiation of ≈0.1 ps duration in such doped matter and the dynamics of its ionization are analyzed. The evolution of the electric field and the energy transfer from wave to particles in the presence of nanonantennas is studied. The momentum and energy of the resulting ionization products — protons, electrons and ions — are calculated. The effect of doping with nanoparticles of dipole, quadrupole, and spherical shapes of different sizes is explored. The comparative analysis is conducted for verious shapes of dopes and various intensities of laser pulses, aiming to determine the best energy absorption in matter and the increase of the energy of ionization products in strong laser fields.
Details
Dr. Prof. Konstantin Zhukovsky, Wigner Research Centre for Physics, Budapest, 1121, Hungary; Lomonosov Moscow State University,
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | No |
| Name of experiment and experimental site | N/A |
| Is the speaker for that presentation defined? | Yes |
