Abstract
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 atomicallythin energy harvesting/conversion devices.
Original language | English (US) |
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Pages (from-to) | 7120-7130 |
Number of pages | 11 |
Journal | Optics Express |
Volume | 23 |
Issue number | 6 |
DOIs | |
State | Published - Mar 23 2015 |
Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics