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.

Controlling the plasmon-induced transparency system based on Dirac semimetal at mid-infrared band

2019 ◽  
Vol 449 ◽  
pp. 13-18 ◽  
Author(s):  
Sa Yang ◽  
Renlong Zhou ◽  
Dan Liu ◽  
Qiawu Lin ◽  
Shuang Li
Keyword(s):  
Infrared Band ◽  
Mid Infrared ◽  
Dirac Semimetal ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Lattice induced transparency-like in symmetric metasurfaces tuned with incident angles in mid-infrared region

2021 ◽  
Vol 121 ◽  
pp. 111535
Author(s):  
Yue Liang ◽  
Xiaofei Liu ◽  
Qi Han ◽  
Xueru Zhang ◽  
Yuxiao Wang ◽  
...  
Keyword(s):  
Infrared Region ◽  
Mid Infrared ◽  
Induced Transparency

scholarly journals Mid-infrared plasmon induced transparency in heterogeneous graphene ribbon pairs

2014 ◽  
Vol 22 (26) ◽  
pp. 32450 ◽  
Author(s):  
Lei Wang ◽  
Wei Cai ◽  
Weiwei Luo ◽  
Zenghong Ma ◽  
Chenglin Du ◽  
...  
Keyword(s):  
Graphene Ribbon ◽  
Mid Infrared ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Tunable anisotropic plasmon-induced transparency in black phosphorus-based metamaterials

2021 ◽  
Author(s):  
Li Huang ◽  
Zhongpeng Jia ◽  
Bin Tang
Keyword(s):  
Slow Light ◽  
Incident Light ◽  
Fdtd Method ◽  
Infrared Region ◽  
Photonic Devices ◽  
Black Phosphorus ◽  
Lorentz Oscillator ◽  
New Type ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Abstract Black phosphorus (BP), as a new type of two-dimensional material, has drawn considerable interest because of its distinct physics and electronic characteristics. In this work, we theoretically present a BP-based metamaterial, unit cell of which is composed of a rectangular BP nano-patch and two parallel BP strips. The research results indicate that tunable anisotropic plasmon-induced transparency (PIT) effect can be achieved in the presented metamaterials when the polarization of incident light is along armchair and zigzag directions of BP crystal, respectively. Moreover, the spectra responses and group delay accompanied by the PIT effect can be actively controlled by adjusting the carrier density and geometric parameters. The electromagnetic simulation results calculated by finite-difference time-domain (FDTD) method show good agreement with the coupled Lorentz oscillator model. Our proposed nanostructure provides a new path for designing photonic devices such as slow light and photodetector in the mid-infrared region.

scholarly journals Design Optimization and Fabrication of Graphene/ J-aggregate Kretschmann–raether Devices for Refractive Index Sensing Using Plasmon-induced Transparency Phenomena

2021 ◽  
Author(s):  
Amir Mohammad Rezaei Zanganeh ◽  
Ali Farmani ◽  
Mohammad Hazhir Mozaffari ◽  
Ali Mir
Keyword(s):  
Magnetic Field ◽  
Refractive Index ◽  
Chemical Potential ◽  
Structural Parameters ◽  
Fdtd Method ◽  
High Sensitivity ◽  
Force Microscopy ◽  
Sensing Platform ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Abstract Here, a novel plasmon-induced transparency (PIT) sensing platform based on a Kretschmann–Raether configuration with graphene/ J-aggregate materials is proposed. The J-aggregate material, despite its dielectric optical properties, can strongly confine the surface wave-like metal layers. These features promise to highly enlarge the range of plasmonic sensing devices. Therefore, the sensing parameters have been numerically and experimentally investigated using the finite-difference time-domain (FDTD) method and atomic force microscopy (AFM). The results show that the PIT resonance of the structure has a sharp reflection, in turn, leads to high sensitivity. To deep benchmark the structure the effects of the structural parameters and environmental variables such as temperature and magnetic field on the sensing properties of the device are analyzed in detail. The maximum sensitivity is obtained as high as 1400 angle per refractive-index unit (RIU) with an extra high figure of merit of 36 RIU-1 around the PIT resonance angle of 53 ̊. By considering the magnetic field of 0.01T and graphene chemical potential of mc=0.4 eV, and environmental room temperature, the proposed structure may potentially be applied in advanced off-chip PIT sensors.

scholarly journals Tunable Graphene-Based Plasmon-Induced Transparency Based on Edge Mode in the Mid-Infrared Region

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 448 ◽  
Author(s):  
Heng Xu ◽  
Zhaojian Zhang ◽  
Shangwu Wang ◽  
Yun Liu ◽  
Jingjing Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Incident Angle ◽  
Transparency Window ◽  
Monolayer Graphene ◽  
Geometrical Parameters ◽  
Edge Mode ◽  
Mid Infrared ◽  
Transmission Amplitude ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

A monolayer-graphene-based concentric-double-rings (CDR) structure is reported to achieve broadband plasmon-induced transparency (PIT) on the strength of edge mode in the mid-infrared regime. The theoretical analysis and simulation results reveal that the structure designed here has two plasmonic resonance peaks at 39.1 and 55.4 THz, and a transparency window with high transmission amplitude at the frequency of 44.1 THz. Based on the edge mode coupling between neighbor graphene ribbons, PIT phenomenon is produced through the interference between different (bright and dark) modes. The frequency and bandwidth of the transparency window and slow light time could be effectively adjusted and controlled via changing geometrical parameters of graphene or applying different gate voltages. Additionally, this structure is insensitive to the polarization and incident angle. This work has potential application on the optical switches and slow light modulators.

Study of the optical properties of dielectric-graphene-dielectric multilayer quasi-periodic structures: Thue-Morse case

MRS Advances ◽  
2017 ◽  
Vol 2 (49) ◽  
pp. 2787-2792 ◽  
Author(s):  
I. A. Sustaita-Torres ◽  
C. Sifuentes-Gallardo ◽  
J. R. Suárez-López ◽  
I. Rodríguez-Vargas ◽  
J. Madrigal-Melchor
Keyword(s):  
Optical Properties ◽  
Ultrafast Lasers ◽  
Chemical Potential ◽  
Periodic Structures ◽  
High Mobility ◽  
Dielectric Materials ◽  
Infrared Region ◽  
Graphene Sheets ◽  
Absorption Bands ◽  
Geometrical Properties

ABSTRACT:Potential applications in optoelectronics had generated a great interest on the study of graphene optical properties. Along with this, graphene has exceptional properties such as high mobility and optical transparency, flexibility, mechanical robustness, etc. Due to these properties, graphene could be used in different devices such as transparent conductors, organic light-emitting diodes, photodetectors, touch screens, saturable absorbers and ultrafast lasers. A transfer-matrix method is used in order to calculate graphene optical properties, such as transmission, and absorption in the infrared region. The quasi-periodic structure consists in intercalated graphene sheets between two consecutives dielectrics. The dielectric materials follow the Thue-Morse sequence (ThMo). The graphene sheets are described by the optical conductivity considering interband and intraband transitions. The structure of the spectra depends strongly on the number of sequence generation, width of the different dielectrics and dielectric permittivity. In our case, the infrared region corresponds to a chemical potential greater thankT. In the calculated spectra, the geometrical properties of the Thue-Morse sequence can be observed. We obtain absorption bands well defined.

Sign in / Sign up

Export Citation Format

Share Document