Strong interaction between graphene and localized hot spots in all-dielectric metasurfaces

@article{Xiao2019StrongIB,
  title={Strong interaction between graphene and localized hot spots in all-dielectric metasurfaces},
  author={Shuyuan Xiao and Tingting Liu and Chaobiao Zhou and Xiaoyun Jiang and Le Cheng and Yuebo Liu and Zhong Li},
  journal={Journal of Physics D: Applied Physics},
  year={2019},
  volume={52}
}
The active photonics based on the two-dimensional material graphene have attracted a great deal of interest for developing tunable and compact optical devices with high efficiency. Here, we integrate graphene into the Fano-resonant all-dielectric metasurfaces consisting of silicon split resonators, and systematically investigate the strong interaction between graphene and the highly localized hot spots inside feed gaps in the near infrared regime. The numerical results show that the integrated… 
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9 Citations

Switchable Electromagnetically Induced Transparency with Toroidal Mode in a Graphene-Loaded All-Dielectric Metasurface

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A Tunable Dual-Band and Polarization-Insensitive Coherent Perfect Absorber Based on Double-Layers Graphene Hybrid Waveguide

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A method that allows direct monitoring of Fano resonant behaviours of local electric fields inside a waveguide layer in multilayer structures was developed. All-dielectric multilayer structures…

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References

SHOWING 1-10 OF 54 REFERENCES

Enhanced transmission modulation based on dielectric metasurfaces loaded with graphene.

The proposed hybrid graphene/dielectric nanodevice has compact footprint, fast speed, and can be easily integrated to the current CMOS technology, which would have promising applications to near-IR tunable filters, faster optical interconnects, efficient sensors, switches, and amplitude modulators.

Monolayer graphene sensing enabled by the strong Fano-resonant metasurface.

The deep-subwavelength sensing of the atomically thin monolayer graphene further highlights the extreme sensitivity of the resonant electric field excited at the dark Fano resonance, allowing the detection of an analyte that is λ/1 000‬ thinner than the free space wavelength.

Strong field enhancement and light-matter interactions with all-dielectric metamaterials based on split bar resonators.

A type of all-dielectric metamaterials based on split bar resonators based on nano gap at the centre of the resonant elements results in large local field enhancement and light localization in the surrounding medium, which can be employed for strong light-matter interactions.

Flatland plasmonics and nanophotonics based on graphene and beyond

Abstract In this paper, we review and discuss how the recently discovered two-dimensional (2D) Dirac materials, particularly graphene, may be utilized as new efficient platforms for excitations of…

Dual control of active graphene–silicon hybrid metamaterial devices

Tunable light trapping and absorption enhancement with graphene ring arrays.

Surface plasmon resonance (SPR) has been intensively studied and widely employed for light trapping and absorption enhancement. In the mid-infrared and terahertz (THz) regime, graphene supports…

Terahertz electric field modulated mode coupling in graphene-metal hybrid metamaterials.

It is found that the graphene coating impairs the resonances by increasing the damping of the modes and decreasing the coupling between the SRRs whereas the strong THz field restores the resonance by decreasing the conductivity of graphene.

Ultrafast all-optical graphene modulator.

It is shown that a graphene-clad microfiber all-optical modulator can achieve a modulation depth of 38% and a response time of ∼ 2.2 ps, limited only by the intrinsic carrier relaxation time of graphene.

Reversible Thermal Tuning of All‐Dielectric Metasurfaces

All‐dielectric metasurfaces provide a powerful platform for a new generation of flat optical devices, in particular, for applications in telecommunication systems, due to their low losses and high…

All-dielectric metamaterials.

This Review presents a broad outline of the whole range of electromagnetic effects observed using all-dielectric metamaterials: high-refractive-index nanoresonators, metasurfaces, zero-index met amaterials and anisotropic metammaterials, and discusses current challenges and future goals for the field at the intersection with quantum, thermal and silicon photonics.
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