Unconventional Fano resonances in light scattering by small particles

被引：36

作者：

Tribelsky, M. I. ^{[1
,2
,3
]}

Miroshnichenko, A. E. ^{[4
]}

Kivshar, Y. S. ^{[4
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia

[2] Moscow State Inst Radioengn Elect & Automat, Moscow 119454, Russia

[3] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[4] Australian Natl Univ, Nonlinear Phys Ctr, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia

来源：

EPL | 2012年 / 97卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1209/0295-5075/97/44005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We introduce a new concept of Fano-like resonances for the extinction cross-section at light scattering by small (relative to the light wavelength) particles. The resonances occur beyond the applicability of the Rayleigh approximation, when the interference of different electromagnetic modes excited in the particle with the same multipole moment is crucial, while the partition of the incident wave bypassing the particle is unimportant. We present two examples of these fundamentally new Fano-like resonances: at the light scattering by a particle with large dielectric permittivity and by a particle with spatial dispersion. In both cases the extinction cross-section as a function of the incident light frequency exhibits a sequence of the Fano-like resonances, while each individual resonance is described by the conventional Fano profile. Copyright (C) EPLA, 2012

引用

页数：6

共 13 条

[1]

Bohren C. F., 1998, ABSORPTION SCATTERIN, DOI 10.1002/9783527618156

[2]

Bohren C.F., 1983, AM J PHYS, V51, P324

[3] EFFECTS OF CONFIGURATION INTERACTION ON INTENSITIES AND PHASE SHIFTS [J].