Electret electrostatic cloak

Zeng, Lunwu; Zhao, Yanyan; Zhao, Zhigang; Li, Hua

doi:10.1016/j.physb.2015.01.015

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…As has been mentioned above, using transformation optics and metamaterial technology, various novel EM devices have been made possible, especially those on invisibility cloaks. However, only a few works are reported on invisibility cloaks and metamaterials for static/steady fields [57][58][59][60][61][62]. In 2012, our group presented the first experimental demonstration of a dc electric cloak for steady current fields using TO theory.…”

Section: Cloakmentioning

confidence: 99%

Manipulating scattering features by metamaterials

Mei

Tang

et al. 2016

EPJ Applied Metamaterials

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-We present a review on manipulations of electromagnetic scattering features by using metamaterials or metasurfaces. Several approaches in controlling the scattered fields of objects are presented, including invisibility cloaks and radar illusions based on transformation optics, carpet cloak using gradient metamaterials, dc cloaks, mantle cloaks based on scattering cancellation, ''skin'' cloaks using phase compensation, scattering controls with coding/ programmable metasurfaces, and scattering reductions by multilayered structures. Finally, the future development of metamaterials on scattering manipulation is predicted.

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Section: Cloakmentioning

confidence: 99%

Manipulating scattering features by metamaterials

Mei

Tang

et al. 2016

EPJ Applied Metamaterials

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“…Electret materials are a kind of electrically active materials that can be polarized in the electric field and then keep the polarized state for a long time . They have wide potential applications in capacitors, transducers, memory transistors, power generators, energy harvesters, electrostatic cloak, air filters, and so on . Some natural materials (e.g., wax, rosin, and resin) and inorganic ceramics [e.g., perovskite, barium titanate (BaTiO 3 , BT), and lithium niobate (LiNbO 3 , LN)] have good electret properties .…”

Section: Introductionmentioning

confidence: 99%

High‐performance poly(vinylidene fluoride)‐polyamide 11/lithium niobate nanocomposites for the applications in air filtration

Yuan

Dong

Zhao

et al. 2020

J of Applied Polymer Sci

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To overcome the fiber-spinning problem of poly(vinylidene fluoride) (PVDF) because of its high melt viscosity and rapid crystallization, polyamide 11 (PA11) with excellent melt spinning capability and good electret properties is incorporated to prepare blends by melt mixing. Their crystal structure, morphology, electrical polarization properties, and melt spinning performance are systematically characterized by various techniques. It is found that the incorporation of PA11 reduces the crystallinity of PVDF, increases its thermally stimulated discharge current, and reduces its viscosity. Therefore, the blends show much better melt spinning capability. For such blends, the addition of outstanding inorganic electret materials, lithium niobate (LiNbO 3 , LN) nanoparticles is found to further improve the materials' electret properties. Such a strategy is proved to be successful in melt spinning PVDF electrets into fine fibers, which is beneficial to their applications in air filtration and other related fields.

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Cloaking electromagnetic wave with phase shifter

Zeng

Wang

2018

Optik

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Electret electrostatic cloak

Cited by 5 publications

References 28 publications

Manipulating scattering features by metamaterials

Manipulating scattering features by metamaterials

High‐performance poly(vinylidene fluoride)‐polyamide 11/lithium niobate nanocomposites for the applications in air filtration

Cloaking electromagnetic wave with phase shifter

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