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Rainbow trapping in hyperbolic metamaterial waveguide.

ABSTRACT: The recent reported trapped "rainbow" storage of light using metamaterials and plasmonic graded surface gratings has generated considerable interest for on-chip slow light. The potential for controlling the velocity of broadband light in guided photonic structures opens up tremendous opportunities to manipulate light for optical modulation, switching, communication and light-matter interactions. However, previously reported designs for rainbow trapping are generally constrained by inherent difficulties resulting in the limited experimental realization of this intriguing effect. Here we propose a hyperbolic metamaterial structure to realize a highly efficient rainbow trapping effect, which, importantly, is not limited by those severe theoretical constraints required in previously reported insulator-negative-index-insulator, insulator-metal-insulator and metal-insulator-metal waveguide tapers, and therefore representing a significant promise to realize the rainbow trapping structure practically.

SUBMITTER: Hu H

PROVIDER: S-EPMC3570783 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Rainbow trapping in hyperbolic metamaterial waveguide.

Hu Haifeng H Ji Dengxin D Zeng Xie X Liu Kai K Gan Qiaoqiang Q

Scientific reports 20130213

The recent reported trapped "rainbow" storage of light using metamaterials and plasmonic graded surface gratings has generated considerable interest for on-chip slow light. The potential for controlling the velocity of broadband light in guided photonic structures opens up tremendous opportunities to manipulate light for optical modulation, switching, communication and light-matter interactions. However, previously reported designs for rainbow trapping are generally constrained by inherent diffi ...[more]

PMID: 23409240

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