Open AccessDouble Fano resonance in a plasmonic double grating structure
Author(s) -
Brenda Dana,
Alon Bahabad
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.022334
Subject(s) - fano resonance , optics , plasmon , resonance (particle physics) , grating , fano plane , diffraction grating , physics , degenerate energy levels , materials science , atomic physics , geometry , mathematics , quantum mechanics
It is shown theoretically and numerically that a simple gratings-based plasmonic structure can support a nearly-degenerate double Fano resonance which can lead to a relatively narrow spectral line shape. The double-resonance spectral location and line-shape are controllable by either adjusting the periodicity and unit-cell of the gratings or by adjusting the angle of incidence of the incoming radiation.