Surface second-harmonic from metallic nanoparticle configurations - a transformation optics approach
arXiv:1903.07592 · doi:10.1103/PhysRevB.99.235429
Abstract
We study surface second-harmonic generation (SHG) from a singular plasmonic structure consisting of touching metallic wires. We use the technique of transformation optics and relate the structure to a rather simpler geometry, a slab waveguide. This allows us to obtain an analytical solution to the problem, revealing rich physical insights. We identify various conditions that govern the SHG efficiency. Importantly, our analysis demonstrates that apart from the mode-matching condition, phase-matching condition is relevant even for this sub-wavelength structure. Furthermore, we identify a geometric factor which was not identified before. We support our analysis with numerical simulations.
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Cited by in corpus (4)
- Optimization of second-harmonic generation from touching plasmonic wires
- Second-harmonic generation from singular metasurfaces
- Sum frequency generation from touching wires: A transformation optics approach
- Second-harmonic generation due to coulomb-like interaction in a heterodimer of subwavelength dimensions