Versatile terahertz graphene metasurface based on plasmon-induced transparency

Xie, Qun; Guo, Linhui; Zhang, Zexuan; Gao, Panpan; Wang, Mei; Xia, Feng; Zhang, Kun; Sun, Peng; Dong, Lifeng; Yun, Maojin

doi:10.1016/j.apsusc.2022.154575

Cited by 31 publications

(6 citation statements)

References 68 publications

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“…12(b), we plot the fitting line with the slope of −0.172. In common, the sensitivity ( S ) of the proposed metasurfaces is defined as: 36 where Δ f represents the difference in frequency at transparent window and Δ n represents the difference in refractive index. Therefore, the sensitivity of the proposed metasurfaces is 0.172 THz RIU −1 .…”

Section: Resultsmentioning

confidence: 99%

Polarization-insensitive electromagnetically induced transparency and its sensing performance based on spoof localized surface plasmons in vanadium dioxide-based terahertz metasurfaces

Chen

Yang

2023

Phys. Chem. Chem. Phys.

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Section: Resultsmentioning

confidence: 99%

Polarization-insensitive electromagnetically induced transparency and its sensing performance based on spoof localized surface plasmons in vanadium dioxide-based terahertz metasurfaces

Chen

Yang

2023

Phys. Chem. Chem. Phys.

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“…Graphene has been recognized as one of the most attractive materials in the last few decades. Due to its unique physical, chemical, electrical and mechanical properties, graphene shows great promise in many applications, including electronics, energy storage and sensor systems [ 74 – 76 ]. In particular, graphene-based terahertz sensor devices have been widely developed and are considered to be attractive platforms for fast and accurate detectors, fast and accurate sensing detectors.…”

Section: Terahertz Metamaterials Sensing Detection Indexmentioning

confidence: 99%

Advances in terahertz metasurface graphene for biosensing and application

Yang

You

2023

Discover Nano

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Based on the extraordinary electromagnetic properties of terahertz waves, such as broadband, low energy, high permeability, and biometric fingerprint spectra, terahertz sensors show great application prospects in the biochemical field. However, the sensitivity of terahertz sensing technology is increasingly required by modern sensing demands. With the development of terahertz technology and functional materials, graphene-based terahertz metasurface sensors with the advantages of high sensitivity, fingerprint identification, nondestructive and anti-interference are gradually gaining attention. In addition to providing ideas for terahertz biosensors, these devices have attracted in-depth research and development by scientists. An overview of graphene-based terahertz metasurfaces and their applications in the detection of biochemical molecules is presented. This includes sensor mechanism research, graphene metasurface index evaluation, protein and nucleic acid sensors, and other chemical molecule sensing. A comparative analysis of graphene, nanomaterials, silicon, and metals to develop material-integrated metasurfaces. Furthermore, a brief summary of the main performance results of this class of devices is presented, along with suggestions for improvements to the existing shortcoming.

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“…There are usually two ways to achieve EIT-like phenomena, one is a hybridization between the bright-and bright-mode, while the other is a destructive interference between the bright-and dark-mode [27]. The bright mode can be excited directly by the incident light source, while the dark mode can only be excited by the localized field formed by the coupling of the bright mode and the excitation light source [28]. The coupling at the resonance produces a large far-field transmission at a high near-field enhanced frequency, which significantly increases the group index in the material and thus reduces the group velocity through the material.…”

Section: Introductionmentioning

confidence: 99%

“…The nonlinear sensitivity of EIT in the enhanced spectral region can form steep dispersion. Thus, metamaterialsbased EIT effect offer opportunities for the development of a variety of terahertz functional devices, such as biosensors [29], optical memory [30], modulators [31], and light switching [28].…”

Section: Introductionmentioning

confidence: 99%

Dual-band electromagnetically induced transparency terahertz metamaterial based on U-like resonator and metallic cut wire for sensing application

Duan

Wang

et al. 2023

Eng. Res. Express

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In this paper, a new scheme for dual-band terahertz electromagnetically induced transparency (EIT) is reported using a simple metamaterial structure, whose surface structure is composed of periodically arranged U-like resonator and metallic cut wire. Two EIT peaks located at 0.65 THz and 1.26 THz with an average transmission intensity of greater than 93% are realized, the formation mechanism of two transparent peaks is mainly attributed to the coupling of bright-bright mode, which is verified by their near-field distributions. Structure parameter changes of metamaterial provide a great ability to regulate and control the performance of two transparent peaks. Interestingly, by replacing the lower baseline of U-like resonator with vanadium dioxide (VO2), the designed metamaterial can dynamically tune the number of EIT peaks. It is revealed that dual-band transparency could be actively converted to single-band transparency by merely varying the properties of VO2 from metallic state to insulating state without changing the structure complexity, and the maximum amplitude modulation depth could reach 93.1%. Further application of designed metamaterial related to sensing is discussed. The designed metamaterial with these excellent features could pave the way for the applications of terahertz technology-related fields.

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Versatile terahertz graphene metasurface based on plasmon-induced transparency

Cited by 31 publications

References 68 publications

Polarization-insensitive electromagnetically induced transparency and its sensing performance based on spoof localized surface plasmons in vanadium dioxide-based terahertz metasurfaces

Polarization-insensitive electromagnetically induced transparency and its sensing performance based on spoof localized surface plasmons in vanadium dioxide-based terahertz metasurfaces

Advances in terahertz metasurface graphene for biosensing and application

Dual-band electromagnetically induced transparency terahertz metamaterial based on U-like resonator and metallic cut wire for sensing application

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