Resonant absorption in transition metamaterials: parametric study

被引：17

作者：

Gibson, Ethan A. ^{[1
]}

Pennybacker, Matthew ^{[2
]}

Maimistov, Andrei I. ^{[3
]}

Gabitov, Ildar R. ^{[2
]}

Litchinitser, Natalia M. ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Elect Engn, Buffalo, NY 14260 USA

[2] Univ Arizona, Dept Math, Tucson, AZ 85721 USA

[3] State Univ, Moscow Inst Phys & Technol, Dept Phys & Technol Nanostruct REC Bionanophys, Dolgoprudnyi 141700, Russia

来源：

JOURNAL OF OPTICS | 2011年 / 13卷 / 02期

关键词：

transition metamaterials; resonant absorption; ELECTROMAGNETIC ENHANCEMENT; INDEX;

D O I：

10.1088/2040-8978/13/2/024013

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We perform a detailed study of the phenomenon of resonant absorption that occurs at an oblique incidence in the vicinity of the zero refractive index transition in graded index metamaterials with the refractive index changing from positive to negative values. We compare the results of numerical simulations with analytical predictions for the case of the linear gradient index profile. Furthermore, we numerically study the transition phenomena in graded index layers with more complex index profiles. A detailed understanding of the phenomenon of resonant absorption may be of considerable importance in the context of transformation optics as it strongly modifies the field distribution near the zero index transition.

引用

页数：5

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