Particle simulation of various gold nanoantennas in laser-irradiated matter for fusion production

Papp, István and Zsukovszkij, Konstantin (2025) Particle simulation of various gold nanoantennas in laser-irradiated matter for fusion production. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 234. pp. 2993-2998. ISSN 1951-6355

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Abstract

Recent advances in laser technology and plasmonics highlight the key role of resonating particles in boosting wave energy absorption and fusion initiation. We used numerical modeling to study the interaction between laser radiation and gold nanoparticles with different orientations. We investigated the response of gold-doped materials to intense infrared radiation, focusing on electron ejection dynamics and near-field enhancement. Optimal orientation results in an order of magnitude increase in the electric field. Furthermore, we introduce a shape that is less sensitive to orientation, giving better near-field enhancement than the original resonant nanoparticle at medium intensity field. These findings are crucial for future fusion research, particularly in the context of high-energy short laser ignition pulses within the NAPLIFE project. This article is a short overview of the presentation with the same title on Particles and Plasmas Symposium 2024 held in Budapest.

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