Enhanced dual-band absorption of molybdenum disulfide using a plasmonic perfect absorber | Zendy

Xin Luo | Zendy; Xiang Zhai | Zendy; Lingling Wang | Zendy; Qi Lin | Zendy

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Enhanced dual-band absorption of molybdenum disulfide using a plasmonic perfect absorber

Author(s) -

Xin Luo,

Xiang Zhai,

Lingling Wang,

Qi Lin

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.26.011658

Subject(s) - materials science , optics , finite difference time domain method , plasmon , molybdenum disulfide , wavelength , metamaterial , absorption (acoustics) , polarization (electrochemistry) , visible spectrum , optoelectronics , absorption band , metamaterial absorber , ray , physics , chemistry , tunable metamaterials , metallurgy

In order to remarkably enhance its absorption capability, a tunable dual-band MoS 2 -based perfect absorber inspired by metal-insulator-metal (MIM) metamaterial is proposed. By using the finite-difference time-domain (FDTD) simulations, dual-band perfect absorption peaks are realized in the visible light regime, and the absorptions of monolayer MoS 2 are enhanced up to 57% and 80.5% at the peak wavelengths. By manipulating related structural parameters, the peak wavelengths of MoS 2 absorption can be separately tuned in a wide wavelength range. Furthermore, the proposed absorber can tolerate a relatively wide range of incident angles and demonstrate polarization-dependence.

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