Instantaneous and transient nonlinearities of graphene plasmons (Conference Presentation)

2017 ◽  
Author(s):  
Joel D. Cox ◽  
F. Javier García de Abajo
Keyword(s):  
Graphene Plasmons

Graphene plasmons: properties and applications

2014 ◽  
Author(s):  
Ph. Avouris ◽  
D. B. Farmer ◽  
M. Freitag ◽  
Y. Li ◽  
T. Low ◽  
...  
Keyword(s):  
Graphene Plasmons

Efficient mid-infrared wavelength converter based on plasmon-enhanced nonlinear response in graphene nanoribbons

2021 ◽  
Author(s):  
Jiao Chi ◽  
Hongjun Liu ◽  
Zhaolu Wang ◽  
Nan Huang
Keyword(s):  
Graphene Sheet ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Graphene Nanoribbons ◽  
Wavelength Converter ◽  
Third Order ◽  
Mid Infrared ◽  
Infrared Wavelength ◽  
Graphene Plasmons ◽  
Plasmon Polaritons

Abstract Graphene plasmons with enhanced localized electric field have been used for boosting the light-matter interaction in linear optical nano-devices. Meanwhile, graphene is an excellent nonlinear material for several third-order nonlinear processes. We present a theoretical investigation of the mechanism of plasmon-enhanced third-order nonlinearity susceptibility of graphene nanoribbons. It is demonstrated that the third-order nonlinearity susceptibility of graphene nanoribbons with excited graphene surface plasmon polaritons can be an order of magnitude larger than the intrinsic susceptibility of a continuous graphene sheet. Combining these properties with the relaxed phase matching condition due to the ultrathin graphene, we propose a novel plasmon-enhanced mid-infrared wavelength converter with arrays of graphene nanoribbons. The wavelength of sig-nal light is in mid-infrared range, which can excite the tunable surface plasmon polaritons in arrays of graphene nanoribbons. The efficiency of the converter from mid-infrared to near-infrared wavelength can be remarkably improved by 60 times compared with the graphene sheet without graphene plasmons. This work provides a novel idea for the efficient application of graphene in the nonlinear optical nano-devices. The proposed mid-infrared wavelength converter is compact, tunable and has promising potential in graphene-based mid-infrared detector with high detection efficiency.

Infrared spectroscopy with tunable graphene plasmons (Presentation Recording)

2015 ◽  
Author(s):  
Andrea Marini ◽  
Iván Silveiro ◽  
Javier Garcia de Abajo
Keyword(s):  
Infrared Spectroscopy ◽  
Graphene Plasmons

scholarly journals Modulated Resonant Transmission of Graphene Plasmons Across a λ /50 Plasmonic Waveguide Gap

2018 ◽  
Vol 10 (5) ◽  
Author(s):  
Min Seok Jang ◽  
Seyoon Kim ◽  
Victor W. Brar ◽  
Sergey G. Menabde ◽  
Harry A. Atwater
Keyword(s):  
Plasmonic Waveguide ◽  
Resonant Transmission ◽  
Graphene Plasmons

scholarly journals Coupling of waveguide mode and graphene plasmons

2021 ◽  
Vol 255 ◽  
pp. 07002
Author(s):  
Jiří Petráček ◽  
Jiří Čtyroký ◽  
Vladimír Kuzmiak ◽  
Pavel Kwiecien ◽  
Ivan Richter
Keyword(s):  
Low Power ◽  
Graphene Layer ◽  
Waveguide Mode ◽  
Chemical Potential ◽  
Temperature Sensing ◽  
Graphene Layers ◽  
Optical Wavelength ◽  
Electro Optic ◽  
Photonic Waveguides ◽  
Graphene Plasmons

Photonic waveguides with graphene layers have been recently studied for their potential as fast and low-power electro-optic modulators with small footprints. We show that in the optical wavelength range of 1.55 μm, surface plasmons supported by the graphene layer with the chemical potential exceeding ~0.5 eV can couple with the waveguide mode and affect its propagation. This effect might be possibly utilized in technical applications as a very low-power amplitude modulation, temperature sensing, etc.

scholarly journals Polarization-independent enhancement of graphene plasmons by coupling with the dipole-like near field of the metallic split-mesh structure

RSC Advances ◽  
2018 ◽  
Vol 8 (40) ◽  
pp. 22286-22292
Author(s):  
Anqi Yu
Keyword(s):  
Electric Field ◽  
Near Field ◽  
Mesh Structure ◽  
Order Of Magnitude ◽  
Graphene Plasmons ◽  
Polarization Independent

Enhancing the localized electric field of graphene plasmons with a metallic split-mesh structure by more than an order of magnitude.

Quantum Surface-Response of Metals Probed by Graphene Plasmons

2021 ◽  
Author(s):  
P. A. D. Goncalves ◽  
T. Christensen ◽  
N. M. R. Peres ◽  
A. P. Jauho ◽  
I. Epstein ◽  
...  
Keyword(s):  
Surface Response ◽  
Graphene Plasmons

scholarly journals Efficient electrical detection of mid-infrared graphene plasmons at room temperature

2018 ◽  
Vol 17 (11) ◽  
pp. 986-992 ◽  
Author(s):  
Qiushi Guo ◽  
Renwen Yu ◽  
Cheng Li ◽  
Shaofan Yuan ◽  
Bingchen Deng ◽  
...  
Keyword(s):  
Room Temperature ◽  
Electrical Detection ◽  
Mid Infrared ◽  
Graphene Plasmons

scholarly journals Wideband tunable perfect absorption of graphene plasmons via attenuated total reflection in Otto prism configuration

Nanophotonics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 645-655 ◽  
Author(s):  
Jinpeng Nong ◽  
Linlong Tang ◽  
Guilian Lan ◽  
Peng Luo ◽  
Caicheng Guo ◽  
...  
Keyword(s):  
Graphene Nanoribbons ◽  
Incident Angle ◽  
Evanescent Waves ◽  
Attenuated Total Reflection ◽  
Absorption Properties ◽  
Perfect Absorption ◽  
Dielectric Spacer ◽  
Graphene Plasmons ◽  
Localized Plasmons ◽  
Effective Degree

AbstractA strategy is proposed to achieve wideband tunable perfect plasmonic absorption in graphene nanoribbons by employing attenuated total refraction (ATR) in Otto prism configuration. In this configuration, the Otto prism with a deep-subwavelength dielectric spacer is used to generate tunneling evanescent waves to excite localized plasmons in graphene nanoribbons. The influence of the configuration parameters on the absorption spectra of graphene plasmons is studied systematically, and the key finding is that perfect absorption can be achieved by actively controlling the incident angle of light under ATR conditions, which provides an effective degree of freedom to tune the absorption properties of graphene plasmons. Based on this result, it is further demonstrated that by simultaneously tuning the incident angle and the graphene Fermi energy, the tunable absorption waveband can be significantly enlarged, which is about 3 times wider than the conventional cavity-enhanced configuration. Our proposed strategy to achieve wideband, tunable graphene plasmons could be useful in various infrared plasmonic devices.

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