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Search: WFRF:(Ma Yungui) > (2015)

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1.
  • Liu, Yichao, et al. (author)
  • Controlling the plasmonic surface waves of metallic nanowires by transformation optics
  • 2015
  • In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 107:1
  • Journal article (peer-reviewed)abstract
    • In this letter, we introduce the technique of using transformation optics to manipulate the mode states of surface plasmonic waves of metallic nanowire waveguides. As examples we apply this technique to design two optical components: a three-dimensional (3D) electromagnetic mode rotator and a mode convertor. The rotator can rotate the polarization state of the surface wave around plasmonic nanowires by arbitrarily desired angles, and the convertor can transform the surface wave modes from one to another. Full-wave simulation is performed to verify the design and efficiency of our devices. Their potential application in photonic circuits is envisioned.
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2.
  • Zhu, Jianfei, et al. (author)
  • Three-dimensional magnetic cloak working from d.c. to 250 kHz
  • 2015
  • In: Nature Communications. - : Nature Publishing Group. - 2041-1723. ; 6
  • Journal article (peer-reviewed)abstract
    • Invisible cloaking is one of the major outcomes of the metamaterial research, but the practical potential, in particular for high frequencies (for example, microwave to visible light), is fatally challenged by the complex material properties they usually demand. On the other hand, it will be advantageous and also technologically instrumental to design cloaking devices for applications at low frequencies where electromagnetic components are favourably uncoupled. In this work, we vastly develop the bilayer approach to create a three-dimensional magnetic cloak able to work in both static and dynamic fields. Under the quasi-static approximation, we demonstrate a perfect magnetic cloaking device with a large frequency band from 0 to 250 kHz. The practical potential of our device is experimentally verified by using a commercial metal detector, which may lead us to having a real cloaking application where the dynamic magnetic field can be manipulated in desired ways.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
He, Sailing (2)
Yuan, Jun (2)
Yin, Ge (2)
Ma, Yungui (2)
Liu, Yichao (2)
Jiang, Wei (1)
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Zhu, Jianfei (1)
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University
Royal Institute of Technology (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (1)
Engineering and Technology (1)
Year
2015 (2)Undo refine

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