Optimization of second-harmonic generation from touching plasmonic wires
arXiv:2011.05640 · doi:10.1103/PhysRevB.103.075411
Abstract
We employ transformation optics to optimize the generic nonlinear wave interaction of second-harmonic generation from a pair of touching metallic wires. We demonstrate a 10 orders of magnitude increase in the second-harmonic scattering cross-section by increasing the background permittivity and a 5 orders of magnitude increase in efficiency with respect to a single wire. These results have clear implications for the design of nanostructured metallic frequency-conversion devices. Finally, we exploit our analytic solution of a non-trivial nanophotonic geometry as a platform for performing a critical comparison of the strengths, weaknesses and validity of other prevailing theoretical approaches previously employed for nonlinear wave interactions at the nanoscale.
References in corpus (14)
- Mode-matching in multiresonant plasmonic nanoantennas for enhanced second harmonic generation
- Generalized nonlocal optical response in nanoplasmonics
- Second and Third Harmonic Generation in Metal-Based Nanostructures
- Transformation Optics for Plasmonics
- Origin of optical second-harmonic generation in spherical gold nanoparticles: Local surface and nonlocal bulk contributions
- Origin of second-harmonic generation enhancement in optical split-ring resonators
- Harmonic Generation in Metallic, GaAs-Filled Nanocavities in the Enhanced Transmission Regime at Visible and UV Wavelengths
- Generalizing normal mode expansion of electromagnetic Green's tensor to lossy resonators in open systems
- Experimental demonstration of linear and spinning Janus dipoles for polarisation and wavelength selective near-field coupling
- Revisiting the boundary conditions for second-harmonic generation at metal-dielectric interfaces
- A transformation optics approach to singular metasurfaces
- Harvesting Light with Transformation Optics
- Surface second-harmonic from metallic nanoparticle configurations - a transformation optics approach
- Nonlocal effects in plasmonic metasurfaces with almost touching surfaces