由同心双负（DNG）、单负（SNG）和/或双正（DPS）超材料层对形成的球形纳米颗粒集合的极化率和有效参数
Polarizabilities and Effective Parameters for Collections of Spherical Nano-Particles Formed by Pairs of Concentric Double-Negative (DNG), Single-Negative (SNG) and/or Double-Positive (DPS) Metamaterial Layers
摘要：
当通过将“互补”双负（DNG）、单负（SNG）和/或标准双正（DPS）材料配对在一起来设计同心壳时，可以获得来自微小球形颗粒的不寻常的散射效应。通过将这些高度可极化的散射体嵌入基质中，可以获得具有有趣的有效参数的体相介质。讨论了这些同心球形纳米颗粒的异常极化率和大块复合介质的有效参数的一些物理见解和理由。
英文摘要：
Unusual scattering effects from tiny spherical particles may be obtained when concentric shells are designed by pairing together 'complementary' double-negative (DNG), single-negative (SNG), and/or standard double-positive (DPS) materials. By embedding these highly polarizable scatterers in a host medium one can achieve a bulk medium with interesting effective parameters. Some physical insights and justifications for the anomalous polarizability of these concentric spherical nano-particles and the effective parameters of the bulk composite medium are discussed.
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