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arXiv 0910.3305physics.opticsphysics.plasm-ph
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Mie散射理论中的ε子近零极限

Epsilons Near Zero limits in the Mie scattering theory

M. Tagviashvili

摘要:

经典的Mie理论-均匀球形粒子的电磁辐射散射-被认为是在粒子和周围介质的材料分别在零极限附近的介电常数。揭示了散射横向电场(TE)的最大值为周围介质材料的介电常数接近零极限。研究了相应散射粒子的有效多极极化率。研究了在介质折射率接近于零的情况下,球形粒子在周围介质中的聚集体实现磁偶极共振并由此构造负折射率超材料的可能性。

英文摘要:

The classical Mie theory - electromagnetic radiation scattering by the homogeneous spherical particles - is considered in the epsilon near zero limits separately for the materials of the particles and the surrounding medium. The maxima of a scattered transverse electrical (TE) field for the surrounding medium materials with the epsilon near zero limits are revealed. The effective multipole polarizabilities of the corresponding scattering particles are investigated. The possibility to achieve magnetic dipole resonance and accordingly to construct metamaterials with negative refractive index for the aggregates spherical particles in surrounding medium with the epsilon near zero limits is considered.

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