Electrically Tunable Goos–Hänchen Effect with Graphene in the Terahertz Regime

Fan, Yuancheng; Shen, Nian‐Hai; Zhang, Fuli; Wei, Zeyong; Li, Hongqiang; Zhao, Qian; Fu, Quanhong; Zhang, Peng; Koschny, Thomas; Soukoulis, Costas M.

doi:10.1002/adom.201600303

Cited by 146 publications

(57 citation statements)

References 55 publications

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“…Also, we have shown that HRTEM can further provide information about particle size distribution and lattice fringe of the carbon nanotubes and related catalysts [77][78][79][80][81][82][83][84][85][86][87][88][89]. The controllable synthesis of carbon nanotubes with tailored properties is certainly a challenge for researchers thanks to their valuable applications in several fields.…”

Section: Introductionmentioning

confidence: 98%

Controllable and Large-Scale Synthesis of Carbon Nanostructures: A Review on Bamboo-Like Nanotubes

et al. 2017

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Bamboo-like carbon nanotubes are members of the carbon nanotubes (CNTs) family, whose structure is made up of separated hollow compartments and bamboo knots. Due to the peculiar structure of the CNTs species, the growth mechanism and related features have been widely investigated. Bamboo-like carbon nanotubes are widely applied in several fields, such as sensors, adsorbents, catalysts, and lithium-ion battery electrodes materials. Different methods have been applied for the synthesis of carbon nanotubes, among them, catalytic chemical vapor deposition has been singled out as the most used procedure due to low cost with a high quality product. The present review is devoted to increasing the literature dealing with the design, synthesis, and characterization of bamboo-like carbon nanotubes grown over different catalysts. Results on the methane dry reforming reaction, hydrocarbon thermal decomposition, special chemical vapor deposition as well as other methods applied to the preparation of bamboo-like carbon nanotubes are discussed. The differences in the carbon deposits between the dry reforming reaction and other reaction methods are compared and possible formation mechanisms of bamboo-like carbon nanotubes are discussed.

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Section: Introductionmentioning

confidence: 98%

Controllable and Large-Scale Synthesis of Carbon Nanostructures: A Review on Bamboo-Like Nanotubes

et al. 2017

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“…Moving one step forward to modulate amplitude and phase simultaneously is more challenging. The Goos–Hänchen shift can be utilized for achieving frequency‐dependent dispersion . Metamaterials are still a popular candidate for narrowband polarization switching .…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Ultra‐Broadband Terahertz Modulation Using Bidirectional Switching of Liquid Crystals

Chen

Zhang

et al. 2019

Advanced Optical Materials

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Accurately manipulating field strength and polarization state are essential in various terahertz applications. Such manipulations are based on the efficient modulation of the amplitude and phase of electromagnetic waves. However, there is a lack of such terahertz modulators with sufficient efficiency and bandwidth. Herein, the Brewster–critical angle is exploited for modulation by using a nematic liquid crystal. Unlike liquid crystal phase shifters that only give a narrowband phase delay via a one‐directional switch, the presented device modulates both the amplitude and phase across an ultra‐broadbandwidth via a bidirectional active switch. An average intensity modulation depth over 99.6% is achieved for 0.2–1.6 THz. Furthermore, highly accurate polarization conversion between linear and circular states is also realized for 0.4–1.8 THz, with the average degree of linear and circular polarizations as high as 0.994 and 0.998, respectively. The superior accuracy, bandwidth, and active control achieved provide great potential for multifunctional terahertz modulation.

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“…In this work, by utilizing the unique constraint of constant fields within zero‐index medium (ZIM, with permittivity or/and permeability near zero), we propose to realize CPA via the photonic doping of ZIM with absorptive defects. The concept and theory of “photonic doping” of an epsilon‐near‐zero (ENZ) medium, i.e.…”

Section: Introductionmentioning

confidence: 99%

Coherent Perfect Absorption via Photonic Doping of Zero‐Index Media

Luo

Liu

Hang

et al. 2018

Laser & Photonics Reviews

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Coherent perfect absorption, as time‐reversed lasing, is achieved via appropriate interference of waves in absorbers and provides attractive opportunities for flexible control of light scattering and absorption. Here, the authors theoretically and experimentally demonstrate the realization of coherent perfect absorption by using photonic doping of zero‐index media with absorptive defects. Interestingly, the coherent perfect absorption is independent of the size and shape of this “doped” zero‐index medium absorber, as well as the position of the doping defects. This exceptional absorption property can be well explained via the photonic doping theory for zero‐index media. Moreover, the authors demonstrate that the doping scheme also enables novel ways to control absorption, such as multiple channels and multiple doping defects, etc. This work proposes a unique doping approach for advanced coherent perfect absorption with versatile control functionalities.

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Electrically Tunable Goos–Hänchen Effect with Graphene in the Terahertz Regime

Cited by 146 publications

References 55 publications

Controllable and Large-Scale Synthesis of Carbon Nanostructures: A Review on Bamboo-Like Nanotubes

Controllable and Large-Scale Synthesis of Carbon Nanostructures: A Review on Bamboo-Like Nanotubes

Highly Efficient Ultra‐Broadband Terahertz Modulation Using Bidirectional Switching of Liquid Crystals

Coherent Perfect Absorption via Photonic Doping of Zero‐Index Media

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