Abstract
The linear electromagnetic interaction between innovative hybrid metallo-dielectric nanostructured targets and laser in visible and IR range is investigated through numerical simulations. The obtained results rely on the optimization of a target based on metallic nanowires (NWs) to enhance light absorption in the visible range of the electromagnetic spectrum. The NWs are grown within the ordered nanoholes of an alumina substrate, thus, forming a plasmonic lattice with triangular symmetry. The remaining volume of the nanoholes on top of the NWs is sealed with a transparent layer of aluminum oxide that is suitable to be chemically modified for containing about 25% of deuterium atoms. The study presented here is carried out within the framework of a scientific program named PLANETA (Plasmonic Laser Absorption on Nano-Engineered Targets) aiming at investigating new laser–matter interaction schemes in the ns domain and for nuclear fusion purposes, involving especially the D–D reaction.
Highlights
The study of nuclear reaction rates in plasmas is one of the most important issues in modern science, with interdisciplinary implications in astrophysics, cosmology, etc
Densities and temperatures needed for the observation of any nuclear fusion event depend on the kind of target that is used for the laser irradiation
We proposed a hybrid metallo-dielectric nanostructured target composed of ordered silver nanowires embedded in an alumina matrix, where the alumina pores can be filled-up with a deuterium-doped oxide
Summary
The study of nuclear reaction rates in plasmas is one of the most important issues in modern science, with interdisciplinary implications in astrophysics, cosmology, etc. The linear electromagnetic interaction between innovative hybrid metallo-dielectric nanostructured targets and laser in visible and IR range is investigated through numerical simulations.
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