Beilstein J. Nanotechnol.2016,7, 869–880, doi:10.3762/bjnano.7.79
-dimensional assembly of particles affects the opticalbreakdown threshold of its surroundings. For this purpose we used a fully coupled electromagnetic, thermodynamic and plasma dynamics model for a laser pulse interaction with gold nanospheres, nanorods and assemblies, which was solved using the finite
element method. The thresholds of opticalbreakdown for off- and on-resonance irradiated gold nanosphere monomers were compared against nanosphere dimers, trimers, and gold nanorods with the same overall size and aspect ratio. The opticalbreakdown thresholds had a stronger dependence on the optical near
-field enhancement than on the mass or absorption cross-section of the nanostructure. These findings can be used to advance the nanoparticle-based nanoscale manipulation of matter.
Keywords: electron plasma; finite element method; opticalbreakdown; plasmon coupling; plasmonic nanoparticles
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Figure 1:
Schematic of the model geometry for a nanosphere trimer. The model contains three concentric domain...