Year: 2021
Type: article
Abstract: We employ transformation optics to study analytically nonlinear wave mixing from a singular geometry of touching plasmonic wires. We obtain the analytic solution of the near field and complement it with a solution of far-field properties. We find, somewhat surprisingly, that optimal efficiency (in both regimes) is obtained for the degenerate case of second-harmonic generation. We exploit the analytic solution obtained to trace this behavior to the spatial overlap of input fields near the geometric singularity.
Source: Optics Letters
DOI: 10.1364/ol.414940
Authors: Shimon Elkabetz, K. Nireekshan Reddy, Y. Sivan
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Funder: Israel Science Foundation
Award: G48545314
OpenAlex ID: W3099991565