| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Optimization Design of Electromagnetic Nihility Nanoparticles |
| Ya-Ming Xie1,2, Chang-Yu Liu3, Ze-Jun Ding4,1, Zhi-Guo Wang3,2** |
1Department of Physics, University of Science and Technology of China, Hefei 230026
2Beijing Computational Science Research Center, Beijing 100193
3School of Physics Science and Engineering, Tongji University, Shanghai 200092
4Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026
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| Cite this article: |
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Ya-Ming Xie, Chang-Yu Liu, Ze-Jun Ding et al 2016 Chin. Phys. Lett. 33 094208 |
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Abstract Nihility material is a medium whose relative permittivity and permeability tend to zero simultaneously. In this work, comparing with the scattering properties of perfect nihility nanoparticles (made from nihility material), we provide an optimization design of electromagnetic nihility nanoparticles, which is a coated hybrid nanosphere constituted by commutative $\varepsilon$-negative (ENG) and $\mu$-negative (MNG) media. Compared to a single ENG or MNG nanosphere, it is found that the total and back scattering spectra of coated hybrid nanospheres are much closer to those of perfect nihility nanospheres. Moreover, it is observed that the scattered electromagnetic field distribution of coated hybrid nanospheres is identical to that of perfect nihility nanospheres. These results indicate that the combination of commutative ENG and MNG media can constitute a composite structure which gives the closest approximation of electromagnetic scattering of perfect nihility nanospheres in a wide frequency range.
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Received: 15 May 2016
Published: 30 September 2016
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| PACS: |
42.25.Fx
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(Diffraction and scattering)
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78.67.Pt
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(Multilayers; superlattices; photonic structures; metamaterials)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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