Hotspots from nonreciprocal surface waves

被引：38

作者：

Chettiar, Uday K. ^{[1
]}

Davoyan, Arthur R. ^{[1
]}

Engheta, Nader ^{[1
]}

机构：

[1] Univ Penn, Dept Elect & Syst Engn, Philadelphia, PA 19104 USA

来源：

OPTICS LETTERS | 2014年 / 39卷 / 07期

关键词：

ENHANCEMENT; PLASMONS; FIELD;

D O I：

10.1364/OL.39.001760

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present theoretical and numerical results for a new method of obtaining hotspots that relies on nonreciprocal "one-way" propagation as opposed to the well-known case of resonance-based hotspots. The nonreciprocal propagation is achieved by the breaking of time-reversal symmetry through the use of magnetically biased medium. The location and existence of the hotspots depends on the magnetic bias that results in the breaking of the time-reversal symmetry. This results in the intriguing possibility of switching and spatial control of the hotspots through the magnetic bias. (C) 2014 Optical Society of America

引用

页码：1760 / 1763

页数：4

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