Experimental verification of the rainbow trapping effect in adiabatic plasmonic gratings

被引：132

作者：

Gan, Qiaoqiang ^{[1
,2
]}

Gao, Yongkang ^{[1
]}

Wagner, Kyle ^{[3
]}

Vezenov, Dmitri ^{[3
]}

Ding, Yujie J. ^{[1
]}

Bartoli, Filbert J. ^{[1
]}

机构：

[1] Lehigh Univ, Ctr Opt Technol, Elect & Comp Engn Dept, Bethlehem, PA 18015 USA

[2] SUNY Buffalo, Elect Engn Dept, Buffalo, NY 14260 USA

[3] Lehigh Univ, Dept Chem, Bethlehem, PA 18015 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2011年 / 108卷 / 13期

基金：

美国国家科学基金会;

关键词：

slow light; surface dispersion engineering; surface plasmons; MODES; INDEX; LIGHT;

D O I：

10.1073/pnas.1014963108

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We report the experimental observation of a trapped rainbow in adiabatically graded metallic gratings, designed to validate theoretical predictions for this unique plasmonic structure. One-dimensional graded nanogratings were fabricated and their surface dispersion properties tailored by varying the grating groove depth, whose dimensions were confirmed by atomic force microscopy. Tunable plasmonic bandgaps were observed experimentally, and direct optical measurements on graded grating structures show that light of different wavelengths in the 500-700-nm region is "trapped" at different positions along the grating, consistent with computer simulations, thus verifying the "rainbow" trapping effect.

引用

页码：5169 / 5173

页数：5

共 27 条

[1] Controlling the Velocity of Light Pulses [J].

Boyd, Robert W. ;

Gauthier, Daniel J. .

SCIENCE, 2009, 326 (5956) :1074-1077

[2] Trapping of surface-plasmon polaritons in a graded Bragg structure: Frequency-dependent spatially separated localization of the visible spectrum modes [J].

Chen, Lin ;

Wang, Guo Ping ;

Gan, Qiaoqiang ;

Bartoli, Filbert J. .

PHYSICAL REVIEW B, 2009, 80 (16)

[3]

COHENTANNOUDJI C, 1977, QUANTUM MECH, P912

[4] Toward full spatiotemporal control on the nanoscale [J].

Durach, Maxim ;

Rusina, Anastasia ;

Stockman, Mark I. .

NANO LETTERS, 2007, 7 (10) :3145-3149

[5] Extraordinary optical transmission through sub-wavelength hole arrays [J].

Ebbesen, TW ;

Lezec, HJ ;

Ghaemi, HF ;

Thio, T ;

Wolff, PA .

NATURE, 1998, 391 (6668) :667-669

[6] Two regimes of slow-light losses revealed by adiabatic reduction of group velocity [J].

Engelen, R. J. P. ;

Mori, D. ;

Baba, T. ;

Kuipers, L. .

PHYSICAL REVIEW LETTERS, 2008, 101 (10)

[7] From waveguiding to spatial localization of THz waves within a plasmonic metallic grating [J].

Fu, Zhan ;

Gan, Qiaoqiang ;

Ding, Yujie J. ;

Bartoli, Filbert J. .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2008, 14 (02) :486-490

[8] Numerical Investigation of a Bidirectional Wave Coupler Based on Plasmonic Bragg Gratings in the Near Infrared Domain [J].

Fu, Zhan ;

Gan, Qiaoqiang ;

Gao, Kailu ;

Pan, Zhongqi ;

Bartoli, Filbert J. .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2008, 26 (21-24) :3699-3703

[9] Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures [J].

Gan, Qiaoqiang ;

Fu, Zhan ;

Ding, Yujie J. ;

Bartoli, Filbert J. .

PHYSICAL REVIEW LETTERS, 2008, 100 (25)

[10] Plasmonic surface-wave splitter [J].

Gan, Qiaoqiang ;

Guo, Baoshan ;

Song, Guofeng ;

Chen, Lianghui ;

Fu, Zhan ;

Ding, Yujie J. ;

Bartoli, Filbert J. .

APPLIED PHYSICS LETTERS, 2007, 90 (16)

← 1 2 3 →