Plasmonic array nanoantennas on layered substrates: modeling and radiation characteristics.
This theoretical/engineering study models arrays of plasmonic core-shell nano-radiators positioned over layered substrates using a Green's function dipole approach. The model is validated with full-wave FDTD simulations. The authors report that nanoparticle arraying and multilayer substrate design can be used to control radiation patterns and beam angles, and they also examine finite substrate size effects in simulation.
Key points
- The work develops an analytical Green's function framework for dipoles above layered materials to model plasmonic nanoantenna arrays.
- Near electric scattering resonances, each subwavelength spherical particle is treated as an induced electric dipole linked to the local field via polarizability.
- The theoretical model is validated using full-wave finite difference time domain (FDTD) simulations.
- Engineered multilayer substrates are investigated as a means to manipulate nanoantenna radiation performance.
- The study reports that array configuration and substrate tailoring can engineer radiation patterns and beam angles.
- The effect of finite substrate size is explored using FDTD.
Referenced studies & papers
Relevant papers in OpenMel
Source:
Open original
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
Comments
Log in to comment.
No comments yet.