Bidirectional invisibility in Kramers-Kronig optical media

被引：37

作者：

Longhi, S. ^{[1
,2
]}

机构：

[1] Politecn Milan, Dipartimento Fis, Piazza L da Vinci 32, I-20133 Milan, Italy

[2] CNR, Ist Foton & Nanotecnol, Piazza L da Vinci 32, I-20133 Milan, Italy

来源：

OPTICS LETTERS | 2016年 / 41卷 / 16期

关键词：

BROAD-BAND; TRANSFORMATION OPTICS; REFLECTION; SCATTERING;

D O I：

10.1364/OL.41.003727

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A broad class of planar dielectric media with complex permittivity profiles that are fully invisible, for both left and right incidence sides, is introduced. Such optical media are locally isotropic, non-magnetic, and belong to the recently discovered class of Kramers-Kronig media [Nat. Photonics 9, 436 (2015)], i.e., the spatial profiles of the real and imaginary parts of the dielectric permittivity are related each other by a Hilbert transform. The transition from unidirectional to bidirectional invisibility, and the possibility to realize sharp reflection above a cut-off incidence angle, are also discussed. (C) 2016 Optical Society of America

引用

页码：3727 / 3730

页数：4

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