Title
Optimization of the nanolens consisting of coupled metal nanoparticles: An analytical approach
Document Type
Article
Publication Date
4-15-2011
Abstract
Using a simple and intuitive analytical approach, we perform optimization of a nanolens composed of coupled metal nanoparticles capable of subwavelength focusing of light inside the narrow gap separating the particles. Specifically, we optimize the structure of two nanospheres of different sizes to achieve maximum field enhancement at an off-center position in the gap. We demonstrate that the nanolens of two or more spheres acts simultaneously as an efficient antenna with large dipole and an efficient cavity with small effective volume.
Recommended Citation
Sun, Greg and Khurgin, Jacob B., "Optimization of the nanolens consisting of coupled metal nanoparticles: An analytical approach" (2011). Physics Faculty Publications. 6.
https://scholarworks.umb.edu/physics_faculty_pubs/6
Publisher
American Institute of Physics
Rights
Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Comments
The following article appeared in Applied Physics Letters, vol. 98, issue 15 (2011) and may be found at http://dx.doi.org/10.1063/1.3581886.
Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.