Simulation of photoelectron emission from metallic nanoparticles under laser irradiation⋆
Institute for Nuclear Research, Hungarian Academy of Sciences (Atomki), 4026 Debrecen Bem tér 18/c, Hungary
2 Institute of Physics, University of Pécs, Pécs, Hungary
3 ELI-ALPS, ELI-HU Non-profit Ltd., Dugonics tér 13, 6720 Szeged, Hungary
4 Wigner Research Centre for Physics, Budapest, Hungary
a e-mail: firstname.lastname@example.org
Published online: 4 July 2019
We developed a new computer simulation code that calculates trajectories of photoelectrons emitted from nanoparticles by laser excitation. The code uses the pre-calculated electric field obtained by finite-difference time-domain simulations as input. The photoelectron trajectories emitted from silver nanoparticles were calculated using the classical trajectory Monte Carlo method, where the image force towards the surface is taken into account. We show that our present code is suitable to describe the recent experimental findings reasonably well. Significant effect of the image acceleration to the calculated electron spectra was observed. We found that the calculated energy distributions of photoelectrons are in agreement with the recent experiments.
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