Light focusing by silicon nanosphere structures under conditions of magnetic dipole and quadrupole resonances

authored by: N. Ustimenko, K. V. Baryshnikova, R. Melnikov, D. Kornovan, V. Ulyantsev, A. B. Evlyukhin
Abstract: Metalens is a planar device for light focusing. In this work, we design and optimize c-Si nanosphere metalenses working on the magnetic dipole and quadrupole resonances of the c-Si nanoparticle. Resonant optical response of c-Si nanostructures is simulated by the multipole decomposition method along with the zero-order Born approximation. Limitations of this approach are investigated. The obtained results of optimization are verified by simulation via the T-matrix method.
Organisation(s): PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
External Organisation(s): St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
Type: Conference article
Journal: Journal of Physics: Conference Series
Volume: 2015
No. of pages: 4
ISSN: 1742-6588
Publication date: 17.11.2021
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1088/1742-6596/2015/1/012160 (Access: Open)