Resonant behavior of dielectric objects (electrostatic resonances)

被引：129

作者：

Fredkin, DR ^{[1
]}

Mayergoyz, ID

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92037 USA

[2] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.91.253902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Resonant behavior of dielectric objects occurs at certain frequencies for which the object permittivity is negative and the free-space wavelength is large in comparison with the object dimensions. Unique physical features of these resonances are studied and a novel technique for the calculation of resonance values of permittivity, and hence resonance frequencies, is proposed. Scale invariance of resonance frequencies, unusually strong orthogonality properties of resonance modes, and a two-dimensional phenomenon of "twin" spectra are reported. The paper concludes with brief discussions of optical controllability of these resonances in semiconductor nanoparticles and a plausible, electrostatic resonance based, mechanism for nucleation and formation of ball lightning.

引用

页码：253902 / 253902

页数：4

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