Mid-infrared plasmonic tuning via nanogap control in periodic multilayer graphene nanoribbons

2016 ◽  
Vol 54 ◽  
pp. 22-25 ◽  
Author(s):  
Jong-Kwon Lee ◽  
Heetae Kim
Keyword(s):  
Graphene Nanoribbons ◽  
Multilayer Graphene ◽  
Mid Infrared ◽  
Plasmonic Tuning

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.

Graphene Nanoribbons based mid-infrared photodetectors

2021 ◽  
Author(s):  
Vinod Sharma ◽  
Jinal Tapar ◽  
Saurabh Kishen ◽  
Naresh Kumar Emani
Keyword(s):  
Graphene Nanoribbons ◽  
Infrared Photodetectors ◽  
Mid Infrared

scholarly journals Aperiodic multilayer graphene based tunable and switchable thermal emitter at mid-infrared frequencies

2018 ◽  
Vol 124 (23) ◽  
pp. 233101 ◽  
Author(s):  
S. Sharifi ◽  
Y. M. Banadaki ◽  
V. F. Nezhad ◽  
G. Veronis ◽  
J. P. Dowling
Keyword(s):  
Multilayer Graphene ◽  
Mid Infrared ◽  
Thermal Emitter ◽  
Infrared Frequencies

Adjustment for mid-infrared narrow-band filtering characteristics in multilayer graphene nanofilms

2019 ◽  
Vol 27 (12) ◽  
pp. 2549-2554
Author(s):  
汤炳书 TANG Bing-shu ◽  
孙成祥 SUN Cheng-xiang
Keyword(s):  
Narrow Band ◽  
Multilayer Graphene ◽  
Mid Infrared

scholarly journals Graphene-Based Biosensors for Detection of Composite Vibrational Fingerprints in the Mid-Infrared Region

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1496
Author(s):  
Yijun Cai ◽  
Yanfen Hang ◽  
Yuanguo Zhou ◽  
Jinfeng Zhu ◽  
Jingwen Yang ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Graphene Nanoribbons ◽  
Infrared Region ◽  
Infrared Range ◽  
Label Free ◽  
Mid Infrared ◽  
Performance Limit ◽  
Wide Range ◽  
Vibrational Signals ◽  
Physical Insight

In this study, a label-free multi-resonant graphene-based biosensor with periodic graphene nanoribbons is proposed for detection of composite vibrational fingerprints in the mid-infrared range. The multiple vibrational signals of biomolecules are simultaneously enhanced and detected by different resonances in the transmission spectrum. Each of the transmission dips can be independently tuned by altering the gating voltage applied on the corresponding graphene nanoribbon. Geometric parameters are investigated and optimized to obtain excellent sensing performance. Limit of detection is also evaluated in an approximation way. Besides, the biosensor can operate in a wide range of incident angles. Electric field intensity distributions are depicted to reveal the physical insight. Moreover, another biosensor based on periodic graphene nanodisks is further proposed, whose performance is insensitive to the polarization of incidence. Our research may have a potential for designing graphene-based biosensor used in many promising bioanalytical and pharmaceutical applications.

scholarly journals Plasmon resonance in multilayer graphene nanoribbons

2015 ◽  
Vol 9 (6) ◽  
pp. 650-655 ◽  
Author(s):  
Naresh Kumar Emani ◽  
Di Wang ◽  
Ting-Fung Chung ◽  
Ludmila J. Prokopeva ◽  
Alexander V. Kildishev ◽  
...  
Keyword(s):  
Plasmon Resonance ◽  
Graphene Nanoribbons ◽  
Multilayer Graphene

scholarly journals Applications Of Tunable Mid-Infrared Plasmonic Square-Nanoring Resonator Based On Graphene Nanoribbon

2021 ◽  
Author(s):  
Morteza Janfaza ◽  
Mohammad Ali Mansouri-Birjandi ◽  
Alireza Tavousi
Keyword(s):  
Chemical Potential ◽  
Graphene Nanoribbons ◽  
Fdtd Method ◽  
Three Dimensional ◽  
Optical Computing ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Mid Infrared ◽  
Band Pass ◽  
Basic Blocks

Abstract In this work, different structures are designed based on graphene square-nanoring resonator (GSNR) and simulated by the three-dimensional finite-difference time-domain (3D-FDTD) method. Depending on the location and number of graphene nanoribbons (GNR), the proposed structures can be utilized as a band-pass filter, wavelength demultiplexer, or power splitter in the mid-infrared (MIR) wavelengths. The tunability of the suggested assemblies is easily controlled by changing the dimensions and/or the chemical potential of the GSNRs. Benefiting from the nanoscale and ultra-compact GNRs, these structures can be proposed as basic blocks for optical computing and signal processing in the MIR region.

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