Optical refraction in silver: counterposition, negative phase velocity and orthogonal phase velocity

被引：7

作者：

Naqvi, Qaisar A. ^{[1
]}

Mackay, Tom G. ^{[2
,3
,4
,5
]}

Lakhtakia, Akhlesh ^{[5
]}

机构：

[1] Quaid I Azam Univ, Dept Elect, Islamabad 45320, Pakistan

[2] Univ Edinburgh, Sch Math, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] Univ Edinburgh, Sch Math, Edinburgh EH9 3JZ, Midlothian, Scotland

[4] Univ Edinburgh, Maxwell Inst Math Sci, Edinburgh EH9 3JZ, Midlothian, Scotland

[5] Penn State Univ, Dept Engn Sci & Mech, NanoMM Nanoengineered Metamat Grp, University Pk, PA 16802 USA

来源：

EUROPEAN JOURNAL OF PHYSICS | 2011年 / 32卷 / 04期

关键词：

MEDIA; MOMENTUM; PERMITTIVITY; DIELECTRICS; WAVES;

D O I：

10.1088/0143-0807/32/4/004

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

Complex behaviour associated with metamaterials can arise even in commonplace isotropic dielectric materials. We demonstrate how silver, for example, can support negative phase velocity and counterposition, but not negative refraction, at optical frequencies. The transition from positive to negative phase velocity is not accompanied by remarkable changes in the Abraham and Minkowski momentum densities. In particular, orthogonal phase velocity is associated with nonzero Abraham and Minkowski momentum densities.

引用

页码：883 / 893

页数：11

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