Open AccessAngular selection of transmitted light and enhanced spontaneous emission in grating-coupled hyperbolic metamaterials
Author(s) -
Dasol Lee,
Minkyung Kim,
Jongmin Lee,
Byoungsu Ko,
Hui Joon Park,
Junsuk Rho
Publication year - 2021
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.428231
Subject(s) - metamaterial , optics , grating , physics , surface plasmon polariton , transformation optics , spontaneous emission , plasmon , split ring resonator , radiative transfer , surface plasmon , dielectric , optoelectronics , laser
We propose dielectric grating-coupled hyperbolic metamaterials as a functional device that shows angular selection of transmitted light and enhanced radiative emission rate. We numerically demonstrate that the surface plasmon polaritons in the hyperbolic metamaterials can be effectively outcoupled to the surrounding space by using gratings and facilitate control of the light transmission in the visible frequency. We confirm that the high density of states and the effect of outcoupled plasmonic modes of the proposed structure lead to the increase of Purcell factor and radiative emission. This work will provide multifunctionalities in sensing and imaging systems that use hyperbolic metamaterials.