Flat Surface Plasmon Polariton Bands in Bragg Grating Waveguide for Slow Light

被引：13

作者：

Zhang, Jing ^{[1
,2
]}

Cai, Likang ^{[1
]}

Bai, Wenli ^{[1
]}

Song, Guofeng ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China

[2] Tsinghua Univ, Dept Elect Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2010年 / 28卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Grating; plasmons; slow light; waveguide; PROPAGATION; STORAGE;

D O I：

10.1109/JLT.2010.2051320

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The formations of the surface plasmon polariton (SPP) bands in metal/air/metal (MAM) sub-wavelength plasmonic grating waveguide (PGW) are proposed. The band gaps originating from the highly localized resonances inside the grooves can be simply estimated from the round trip phase condition. Due to the overlap of the localized SPPs between the neighboring grooves, a Bloch mode forms in the bandgap and can be engineered to build a very flat dispersion for slow light. A chirped PGW with groove depth varying is also demonstrated to trap light, which is validated by finite-difference time-domain (FDTD) simulations with both continuous and pulse excitations.

引用

页码：2030 / 2036

页数：7

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