Graphene-based perfect optical absorbers harnessing guided mode resonances

被引：96

作者：

Grande, M. ^{[1
]}

Vincenti, M. A. ^{[2
]}

Stomeo, T. ^{[3
]}

Bianco, G. V. ^{[4
]}

de Ceglia, D. ^{[2
]}

Akoezbek, N. ^{[5
]}

Petruzzelli, V. ^{[1
]}

Bruno, G. ^{[4
]}

De Vittorio, M. ^{[3
,6
]}

Scalora, M. ^{[7
]}

D'Orazio, A. ^{[1
]}

机构：

[1] Politecn Bari, Dipartimento Ingn Elettr & Informaz, Via Re David 200, I-70125 Bari, Italy

[2] CNR, Charles M Bowden Res Ctr, RDECOM, Redstone Arsenal, AL 35898 USA

[3] IIT, Ctr Biomol Nanotechnol, I-73010 Lecce, Italy

[4] Nanotec CNR, Ist Nanotecnol, I-70126 Bari, Italy

[5] AEgis Technol Inc, Huntsville, AL 35806 USA

[6] Univ Salento, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

[7] RDECOM, Charles M Bowden Res Ctr, Redstone Arsenal, AL 35898 USA

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 16期

关键词：

PHOTONIC CRYSTAL; ABSORPTION; TRANSPARENCY;

D O I：

10.1364/OE.23.021032

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate graphene-based optical absorbers that exploit guided mode resonances (GMRs) attaining theoretically perfect absorption over a bandwidth of few nanometers (over the visible and near-infrared ranges) with a 40-fold increase of the monolayer graphene absorption. We analyze the influence of the geometrical parameters on the absorption rate and the angular response for oblique incidence. Finally, we experimentally verify the theoretical predictions in a one-dimensional, dielectric grating by placing it near either a metallic or a dielectric mirror, thus achieving very good agreement between numerical predictions and experimental results. (C) 2015 Optical Society of America

引用

页码：21032 / 21042

页数：11

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