Graphene-based electro-optical control of the beat length of dielectric couplers

被引：4

作者：

Locatelli, Andrea ^{[1
]}

Capobianco, Antonio-Daniele ^{[2
]}

Nalesso, Gianfranco ^{[2
]}

Boscolo, Stefano ^{[3
]}

Midrio, Michele ^{[3
]}

De Angelis, Costantino ^{[1
]}

机构：

[1] Univ Brescia, Dipartimento Ingn Informaz, I-25123 Brescia, Italy

[2] Univ Padua, Dipartimento Ingn Informaz, I-35131 Padua, Italy

[3] Univ Udine, Dipartimento Ingn Elettr Gest & Meccan, I-33100 Udine, Italy

来源：

OPTICS COMMUNICATIONS | 2014年 / 318卷

关键词：

Graphene; Guided waves; Directional couplers; Electro-optical devices; DIRECTIONAL-COUPLERS; OPTICAL MODULATOR; WAVE-GUIDES; PLASMONICS; PHOTONICS; DEVICES; LIGHT;

D O I：

10.1016/j.optcom.2013.12.067

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the properties of dielectric couplers wherein tunability is achieved by inserting graphene layers in the region which separates the waveguides. We show that, in spite of the atomic thickness of graphene, the strong dependence of its optical parameters on the bias voltage allows coupling between the waveguides, and then the beat length of the coupler, to be dramatically changed. We also demonstrate that simple analytical models based on classic waveguide theory can be efficiently applied for the analysis of complex graphene-based electro-optical structures. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：175 / 179

页数：5

共 21 条

[1] Tuning of surface plasmon polaritons beat length in graphene directional couplers
Auditore, Aldo
de Angelis, Costantino
Locatelli, Andrea
Aceves, Alejandro B.
[J]. OPTICS LETTERS, 2013, 38 (20) : 4228 - 4231
[2] Graphene sustained nonlinear modes in dielectric waveguides
Auditore, Aldo
De Angelis, Costantino
Locatelli, Andrea
Boscolo, Stefano
Midrio, Michele
Romagnoli, Marco
Capobianco, Antonio-Daniele
Nalesso, Gianfranco
[J]. OPTICS LETTERS, 2013, 38 (05) : 631 - 633
[3] Graphene Photonics, Plasmonics, and Broadband Optoelectronic Devices
Bao, Qiaoliang
Loh, Kian Ping
[J]. ACS NANO, 2012, 6 (05) : 3677 - 3694
[4] Optical far-infrared properties of a graphene monolayer and multilayer
Falkovsky, L. A.
Pershoguba, S. S.
[J]. PHYSICAL REVIEW B, 2007, 76 (15)
[5] Dyadic Green's functions for an anisotropic, non-local model of biased graphene
Hanson, George W.
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2008, 56 (03) : 747 - 757
[6] Coherent Nonlinear Optical Response of Graphene
Hendry, E.
Hale, P. J.
Moger, J.
Savchenko, A. K.
Mikhailov, S. A.
[J]. PHYSICAL REVIEW LETTERS, 2010, 105 (09)
[7] SWITCHED DIRECTIONAL-COUPLERS WITH ALTERNATING DELTA-BETA
KOGELNIK, H
SCHMIDT, RV
[J]. IEEE JOURNAL OF QUANTUM ELECTRONICS, 1976, 12 (07) : 396 - 401
[8] Kogelnik H., 1985, THEORY DIELECTRIC WA
[9] Graphene Plasmonics: A Platform for Strong Light-Matter Interactions
Koppens, Frank H. L.
Chang, Darrick E.
Javier Garcia de Abajo, F.
[J]. NANO LETTERS, 2011, 11 (08) : 3370 - 3377
[10] Double-Layer Graphene Optical Modulator
Liu, Ming
Yin, Xiaobo
Zhang, Xiang
[J]. NANO LETTERS, 2012, 12 (03) : 1482 - 1485

← 1 2 3 →