Open AccessTunable absorption as multi-wavelength at infrared on graphene/hBN/Al grating structure
Author(s) -
Qinghui Pan,
Guohua Zhang,
Ruming Pan,
Jiahui Zhang,
Cyril Voyant,
HePing Tan
Publication year - 2018
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.26.018230
Subject(s) - materials science , graphene , plasmon , grating , surface plasmon polariton , absorption (acoustics) , optics , polariton , optoelectronics , surface plasmon , physics , nanotechnology , composite material
This work designs a graphene/hBN/Al grating anisotropic hybrid structure. Formed by strong coupling between plasmonic Magnetic polaritons (MPs) in the metal grating and phonon-plasmon polaritons, hybrid hyperbolic phonon-plasmon polaritons in the graphene/hBN film have been excited, resulting in three sharp, high absorption peaks, which are 0.75, 0.97 and 0.97, formed at 5.92 μm, 6.32 μm, and 7.64 μm respectively. The absorption mechanisms have been theoretically analyzed. Local electromagnetic field and power dissipation density are depicted for further elucidating the underlying mechanisms. The different structural parameters and chemical potential, which affect the absorption peak were discussed. These numerical results can provide potential application in the field of optical detection and optoelectronic.