Selective excitation of resonances in gammadion metamaterials for terahertz wave manipulation

Wang, Dacheng; Huang, Qin Gan; Qiu, Cheng‐Wei; Hong, Minghui

doi:10.1007/s11433-015-5674-7

Cited by 23 publications

(9 citation statements)

References 34 publications

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“…This is especially important in terahertz (THz) frequency range because many natural materials present weak response to THz wave, making it hard to construct THz devices. To bridge this gap, people have recently proposed a wide range of metamaterials based THz devices to control THz wave, such as modulators [11,12], polarizers [13], filters [14], absorbers [15] and detectors [16].…”

Section: Introductionmentioning

confidence: 99%

An ultrathin terahertz quarter-wave plate using planar babinet-inverted metasurface

et al. 2015

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Metamaterials promise an exotic approach to artificially manipulate the polarization state of electromagnetic waves and boost the design of polarimetric devices for sensitive detection, imaging and wireless communication. Here, we present the design and experimental demonstration of an ultrathin (0.29λ) terahertz quarter-wave plate based on planar babinet-inverted metasurface. The quarter-wave plate consisting of arrays of asymmetric cross apertures reveals a high transmission of 0.545 with 90 degrees phase delay at 0.870 THz. The calculated ellipticity indicates a high degree of polarization conversion from linear to circular polarization. With respect to different incident polarization angles, left-handed circular polarized light, right-handed circular polarized light and elliptically polarized light can be created by this novel design. An analytical model is applied to describe transmitted amplitude, phase delay and ellipticitiy, which are in good agreement with the measured and simulated results. The planar babinet-inverted metasurface with the analytical model opens up avenues for new functional terahertz devices design.

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Section: Introductionmentioning

confidence: 99%

An ultrathin terahertz quarter-wave plate using planar babinet-inverted metasurface

et al. 2015

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“…Figure 4c shows two kinds of planar chiral elements, i.e., the spiral and gammadion, [63,64] which have different responses for opposite circular polarizations. Figure 4d shows two kinds of basic elements used for quasicontinuous phase modulation.…”

Section: Classification Of Subwavelength Structuresmentioning

confidence: 99%

Electromagnetic Architectures: Structures, Properties, Functions and Their Intrinsic Relationships in Subwavelength Optics and Electromagnetics

Luo

Guo

et al. 2021

Advanced Photonics Research

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In recent years, with the development of photonic crystals, metamaterials, metasurfaces, and other related disciplines, the relationship between the structures and functionalities of artificial optical/electromagnetic materials and devices has become a research hotspot. This article reviews the optical/electromagnetic properties and performance of typical artificial micro/nanostructures. Based on the analogy of mechanics and optics/electromagnetism, the concept of "Electromagnetic Architectures" is proposed. In particular, we reviewed several typical methods for the study of optical/electromagnetic structural-functional relationships, including semi-classical analytical models, heuristic optimization methods, deep neural networks, topological optimization methods, etc. The viewpoint of this paper may push further researches on the structural-functional relationship of artificially structured materials and devices, and find broad application prospects in imaging, communication, photonic chips, among many others.

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“…Furthermore, most current metadevices are static, and their performance is not reconfigurable once fabricated. Although some techniques such as the incorporation of semiconductors and phase‐change materials could offer some tunability, deeper understanding of the time‐domain response and control strategy is still urgently required. Furthermore, specific design packages should be developed to accelerate the design speed and consider the engineering‐related parameters such as optical aberration, system integration, and environmental adaptability .…”

Section: Conclusion and Outlooksmentioning

confidence: 99%

Subwavelength Optical Engineering with Metasurface Waves

Luo

2018

Advanced Optical Materials

167

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Figure 3. Plasmonic superlens and hyperlens. a) Plasmonic EYI effect in structured metal film. Adapted with permission. [46] Copyright 2004, American Institute of Physics (AIP). b) Schematic of the optical system for the demonstration of thin film superlens. Adapted with permission. [49] Figure 11. Multifunctional metasurfaces. a) The far-field intensity distribution of wave-fronts with positive (red) and negative (blue) helicities emerging from segmented, interleaved, and harmonic response metasurfaces composed of gap-plasmon nanoantennas (inset). Adapted with permission. [167] Copyright 2016, AAAS. b) Schematic of the generation of a solid and a hollow spot at two wavelengths and the calculated intensity distribution in the focal plane. Adapted with permission. [12]

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Selective excitation of resonances in gammadion metamaterials for terahertz wave manipulation

Cited by 23 publications

References 34 publications

An ultrathin terahertz quarter-wave plate using planar babinet-inverted metasurface

An ultrathin terahertz quarter-wave plate using planar babinet-inverted metasurface

Electromagnetic Architectures: Structures, Properties, Functions and Their Intrinsic Relationships in Subwavelength Optics and Electromagnetics

Subwavelength Optical Engineering with Metasurface Waves

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