Polarization-insensitive and wide-angle broadband absorption enhancement of molybdenum disulfide in visible regime | Zendy

Xin Luo | Zendy; Zhimin Liu | Zendy; Ziqiang Cheng | Zendy; Jianping Liu | Zendy; Qi Lin | Zendy; Lingling Wang | Zendy

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Polarization-insensitive and wide-angle broadband absorption enhancement of molybdenum disulfide in visible regime

Author(s) -

Xin Luo,

Zhimin Liu,

Ziqiang Cheng,

Jianping Liu,

Qi Lin,

Lingling Wang

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.26.033918

Subject(s) - molybdenum disulfide , materials science , monolayer , optics , finite difference time domain method , polarization (electrochemistry) , brewster's angle , absorption (acoustics) , metamaterial , wavelength , optoelectronics , broadband , molybdenum , visible spectrum , nanotechnology , chemistry , physics , brewster , metallurgy , composite material

In order to remarkably enhance the absorption capability of monolayer molybdenum disulfide (MoS2), a broadband MoS2-based perfect absorber, which is inspired by metamaterial, is proposed. By using the finite-difference time-domain (FDTD) simulations, the absorption of proposed MoS2-based absorber above 94% is achieved from 594 to 809 nm. Meanwhile, the average absorptions of monolayer MoS2 enhanced up to 27% and 67% are realized from 598 to 671 nm and 710 to 801 nm, respectively. By manipulating related structural parameters, the absorption spectrum can be further broadened and shifted in a wide wavelength range. Furthermore, the proposed absorber can tolerate a relatively wide range of incident angles and demonstrate polarization-independence.

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