Negative refraction and left-handed electromagnetism in microwave photonic crystals

被引：302

作者：

Parimi, PV

Lu, WT

Vodo, P

Sokoloff, J

Derov, JS

Sridhar, S

机构：

[1] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

[2] Northeastern Univ, Elect Mat Res Inst, Boston, MA 02115 USA

[3] AFRL, SNHA, Hanscom AFB, MA 01731 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.92.127401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate the negative refraction of microwaves in a metallic photonic crystal prism. The spectral response of the photonic crystal prism, which manifests both positive and negative refraction, is in complete agreement with band-structure calculations and numerical simulations. The validity of Snell's law with a negative refractive index is confirmed experimentally and theoretically. The negative refraction observed corresponds to left-handed electromagnetism that arises due to the dispersion characteristics of waves in a periodic medium. This mechanism for negative refraction is different from that in metamaterials.

引用

页码：127401 / 1

页数：4

共 19 条

[1] Negative refraction by photonic crystals [J].