Nanocavity absorption enhancement for two-dimensional material monolayer systems | Zendy

Haomin Song | Zendy; Suhua Jiang | Zendy; Dengxin Ji | Zendy; Xie Zeng | Zendy; Nan Zhang | Zendy; Kai Liu | Zendy; Chu Wang | Zendy; Yun Xu | Zendy; Qiaoqiang Gan | Zendy

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Nanocavity absorption enhancement for two-dimensional material monolayer systems

Author(s) -

Haomin Song,

Suhua Jiang,

Dengxin Ji,

Xie Zeng,

Nan Zhang,

Kai Liu,

Chu Wang,

Yun Xu,

Qiaoqiang Gan

Publication year - 2015

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.007120

Subject(s) - monolayer , materials science , planar , graphene , absorption (acoustics) , optoelectronics , refractive index , optics , layer (electronics) , thin film , reflector (photography) , nanotechnology , light source , computer graphics (images) , physics , computer science , composite material

Here we propose a strategy to enhance the light-matter interaction of two-dimensional (2D) material monolayers based on strong interference effect in planar nanocavities, and overcome the limitation between optical absorption and the atomically-thin thickness of 2D materials. By exploring the role of spacer layers with different thicknesses and refractive indices, we demonstrate that a nanocavity with an air spacer layer placed between a graphene monolayer and an aluminum reflector layer will enhance the exclusive absorption in the graphene monolayer effectively, which is particularly useful for the development of atomically-thin energy harvesting/conversion devices.

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