Generation and control of optical vortices using left-handed materials

被引：17

作者：

Webb, Kevin J. ^{[1
]}

Yang, Ming-Chuan ^{[1
]}

机构：

[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

来源：

PHYSICAL REVIEW E | 2006年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.74.016601

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Optical vortices are shown to be generated in the near-field through interference between a propagating wave and the amplified evanescent field in a slab of lossy left-handed material. While small loss adversely impacts the sub-wavelength performance in the lens application, the vortex character shown relies on some degree of imperfection. These vortices can be controlled by means of gain/loss and the incident field.

引用

页数：4

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