Independently tunable dual-band plasmonically induced transparency in hybrid metal-graphene metamaterials at mid-infrared frequencies

2017 ◽  
Author(s):  
Chen Sun ◽  
Zhewei Dong ◽  
Jiangnan Si ◽  
Xiaoxu Deng
Keyword(s):  
Dual Band ◽  
Mid Infrared ◽  
Infrared Frequencies ◽  
Induced Transparency ◽  
Plasmonically Induced Transparency

Graphene-Based Tunable Polarization Insensitive Dual-Band Metamaterial Absorber at Mid-Infrared Frequencies

2015 ◽  
Vol 32 (6) ◽  
pp. 068101 ◽  
Author(s):  
Yu-Ping Zhang ◽  
Tong-Tong Li ◽  
Huan-Huan Lv ◽  
Xiao-Yan Huang ◽  
Xiao Zhang ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Mid Infrared ◽  
Polarization Insensitive ◽  
Infrared Frequencies

scholarly journals Active Multiple Plasmon-Induced Transparency with Graphene Sheets Resonators in Mid-Infrared Frequencies

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Jicheng Wang ◽  
Baojie Tang ◽  
Xiushan Xia ◽  
Shutian Liu
Keyword(s):  
Chemical Potential ◽  
Infrared Region ◽  
Graphene Sheets ◽  
Phase Coupling ◽  
Resonance Theory ◽  
Mid Infrared ◽  
Infrared Frequencies ◽  
Induced Transparency ◽  
Good Agreement ◽  
Plasmon Induced Transparency

A multiple plasmon-induced transparency (PIT) device operated in the mid-infrared region has been proposed. The designed model is comprised of one graphene ribbon as main waveguide and two narrow graphene sheets resonators. The phase coupling between two graphene resonators has been investigated. The multimode PIT resonances have been found in both cases and can be dynamically tuned via varying the chemical potential of graphene resonators without optimizing its geometric parameters. In addition, this structure can get multiple PIT effect by equipping extra two sheets on the symmetric positions of graphene waveguide. The simulation results based on finite element method (FEM) are in good agreement with the resonance theory. This work may pave new way for graphene-based thermal plasmonic devices applications.

scholarly journals Independently tunable dual-band perfect absorber based on graphene at mid-infrared frequencies

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yuping Zhang ◽  
Tongtong Li ◽  
Qi Chen ◽  
Huiyun Zhang ◽  
John F. O’Hara ◽  
...  
Keyword(s):  
Dual Band ◽  
Perfect Absorber ◽  
Mid Infrared ◽  
Infrared Frequencies

scholarly journals Graphene-based tunable hyperbolic microcavity

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Michał Dudek ◽  
Rafał Kowerdziej ◽  
Alessandro Pianelli ◽  
Janusz Parka
Keyword(s):  
Resonant Mode ◽  
Transverse Magnetic ◽  
Mid Infrared ◽  
Nanophotonic Devices ◽  
Wide Range ◽  
Fabry Perot ◽  
Hyperbolic Dispersion ◽  
Low Threshold ◽  
Infrared Frequencies ◽  
Infrared Wave

AbstractGraphene-based hyperbolic metamaterials provide a unique scaffold for designing nanophotonic devices with active functionalities. In this work, we have theoretically demonstrated that the characteristics of a polarization-dependent tunable hyperbolic microcavity in the mid-infrared frequencies could be realized by modulating the thickness of the dielectric layers, and thus breaking periodicity in a graphene-based hyperbolic metamaterial stack. Transmission of the tunable microcavity shows a Fabry–Perot resonant mode with a Q-factor > 20, and a sixfold local enhancement of electric field intensity. It was found that by varying the gating voltage of graphene from 2 to 8 V, the device could be self-regulated with respect to both the intensity (up to 30%) and spectrum (up to 2.1 µm). In addition, the switching of the device was considered over a wide range of incident angles for both the transverse electric and transverse magnetic modes. Finally, numerical analysis indicated that a topological transition between elliptic and type II hyperbolic dispersion could be actively switched. The proposed scheme represents a remarkably versatile platform for the mid-infrared wave manipulation and may find applications in many multi-functional architectures, including ultra-sensitive filters, low-threshold lasers, and photonic chips.

Ambient temperature-independent dual-band mid-infrared radiation thermometry

2016 ◽  
Vol 55 (9) ◽  
pp. 2169 ◽  
Author(s):  
You Lü ◽  
Xin He ◽  
Zhong-Hui Wei ◽  
Zhi-Yuan Sun ◽  
Song-Tao Chang
Keyword(s):  
Ambient Temperature ◽  
Infrared Radiation ◽  
Radiation Thermometry ◽  
Dual Band ◽  
Mid Infrared
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