Polarization-sensitive multi-frequency switches and high-performance slow light based on quadruple plasmon-induced transparency in a patterned graphene-based terahertz metamaterial

Li, Yuhui; Xu, Yan; Jiang, Jiabao; Cheng, Shubo; Yi, Zao; Xiao, Guoqing; Zhou, Xukai; Wang, Ziyi; Chen, Zhanyu

doi:10.1039/d2cp05368c

Cited by 24 publications

(8 citation statements)

References 63 publications

(83 reference statements)

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“…The excellent thermal radiation performance makes the model have a high potential for application in the field of thermophotovoltaic power generation. To show the advantages of this model more clearly, we also compared it with several models of the same type, as shown in Table 1 , and it can be seen that the absorption bandwidth of this model is very wide and superior to other models, and the average absorption rate of the model is also very high with such a wide and high absorption bandwidth [ 43 , 44 , 45 , 46 ]. It can be said that the prospect of its practical application is very good.…”

Section: Conclusion Analysis and Discussionmentioning

confidence: 99%

Ultra-Wideband High-Efficiency Solar Absorber and Thermal Emitter Based on Semiconductor InAs Microstructures

et al. 2023

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Since the use of chemical fuels is permanently damaging the environment, the need for new energy sources is urgent for mankind. Given that solar energy is a clean and sustainable energy source, this study investigates and proposes a six-layer composite ultra-wideband high-efficiency solar absorber with an annular microstructure. It achieves this by using a combination of the properties of metamaterials and the quantum confinement effects of semiconductor materials. The substrate is W–Ti–Al2O3, and the microstructure is an annular InAs-square InAs film–Ti film combination. We used Lumerical Solutions’ FDTD solution program to simulate the absorber and calculate the model’s absorption, field distribution, and thermal radiation efficiency (when it is used as a thermal emitter), and further explored the physical mechanism of the model’s ultra-broadband absorption. Our model has an average absorption of 95.80% in the 283–3615 nm band, 95.66% in the 280–4000 nm band, and a weighted average absorption efficiency of 95.78% under AM1.5 illumination. Meanwhile, the reflectance of the model in the 5586–20,000 nm band is all higher than 80%, with an average reflectance of 94.52%, which has a good thermal infrared suppression performance. It is 95.42% under thermal radiation at 1000 K. It has outstanding performance when employed as a thermal emitter as well. Additionally, simulation results show that the absorber has good polarization and incidence angle insensitivity. The model may be applied to photodetection, thermophotovoltaics, bio-detection, imaging, thermal ion emission, and solar water evaporation for water purification.

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Section: Conclusion Analysis and Discussionmentioning

confidence: 99%

Ultra-Wideband High-Efficiency Solar Absorber and Thermal Emitter Based on Semiconductor InAs Microstructures

et al. 2023

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“…For our design, operating at a frequency of approximately 0.75 THz, the direct interband electron transition process is negligible and therefore does not significantly impact the material's optical properties. Thus, intraband transitions dominates the conductivity of graphene [13,25]: i e k T i…”

Section: Active Control Of the Spwsmentioning

confidence: 99%

“…Metasurfaces, with artificial electromagnetic response not attainable in natural materials, offer a compact and versatile means of manipulating various characteristics of incident terahertz waves, including phase and amplitude [8][9][10]. Among them, the use of metasurfaces to actively control the resonant response of the electromagnetically induced transparency (EIT) effect has drawn continuous interests [11][12][13]. Moreover, metasurfaces have also been explored for their potential in exciting terahertz SPWs.…”

Section: Introductionmentioning

confidence: 99%

Active control of polarization-dependent terahertz surface plasmonic wave excitation using coupled graphene-metal hybrid metasurfaces

Su,

Li,

et al. 2024

Phys. Scr.

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Active control of terahertz surface plasmonic wave (SPW) intensity in the propagation direction holds substantial significance for advanced terahertz functional devices. In this study, we propose a graphene-metal hybrid split-ring slit resonator (SRSR) array metasurfaces and employ the concept of electromagnetically induced transparency (EIT) to achieve excitation of asymmetric SPWs under various polarization states. By individually integrating two graphene ribbons into the two split-ring slit gaps and applying different bias voltages, we observed a gradual transition in the excitation behavior of asymmetric terahertz SPWs, ultimately resembling that of a single SRSR. Near-field simulations reveal that this phenomenon is attributed to the short-connection effect of graphene. Our proposed graphene-metal active hybrid metasurface introduces a novel approach to realize active SPWs devices, holding potential applications in terahertz on-chip communication.

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“…Metamaterials are manmade structural materials with special electromagnetic characteristics formed by arranging man-made unit structures in a particular way. 4,5 In recent years, metamaterials have been widely used in terahertz functional devices, [6][7][8][9] which can well realize active control of electromagnetic waves in the terahertz region. Terahertz absorbers based on metamaterials have attracted much attention due to their potential applications in detection, 10 switching, 11 sensing [12][13][14] and filtering.…”

Section: Introductionmentioning

confidence: 99%

A dual ultra-broadband switchable high-performance terahertz absorber based on hybrid graphene and vanadium dioxide

Chen

Wang

et al. 2023

Phys. Chem. Chem. Phys.

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Polarization-sensitive multi-frequency switches and high-performance slow light based on quadruple plasmon-induced transparency in a patterned graphene-based terahertz metamaterial

Abstract: A periodic patterned graphene-based terahertz metamaterial comprised of three transverse graphene strips and one longitudinal continuous graphene ribbon is proposed to achieve a dynamically tunable quadruple plasmon-induced transparency (PIT) effect....

Cited by 24 publications

References 63 publications

Ultra-Wideband High-Efficiency Solar Absorber and Thermal Emitter Based on Semiconductor InAs Microstructures

Ultra-Wideband High-Efficiency Solar Absorber and Thermal Emitter Based on Semiconductor InAs Microstructures

Active control of polarization-dependent terahertz surface plasmonic wave excitation using coupled graphene-metal hybrid metasurfaces

A dual ultra-broadband switchable high-performance terahertz absorber based on hybrid graphene and vanadium dioxide

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