Microcavity-integrated graphene photodetector.

Nano Letters
Marco FurchiThomas Mueller

Abstract

There is an increasing interest in using graphene (1, 2) for optoelectronic applications. (3-19) However, because graphene is an inherently weak optical absorber (only ≈2.3% absorption), novel concepts need to be developed to increase the absorption and take full advantage of its unique optical properties. We demonstrate that by monolithically integrating graphene with a Fabry-Pérot microcavity, the optical absorption is 26-fold enhanced, reaching values >60%. We present a graphene-based microcavity photodetector with responsivity of 21 mA/W. Our approach can be applied to a variety of other graphene devices, such as electro-absorption modulators, variable optical attenuators, or light emitters, and provides a new route to graphene photonics with the potential for applications in communications, security, sensing and spectroscopy.

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Citations

Jan 29, 2013·Nano Letters·Xiaohong AnSwastik Kar
Jan 5, 2013·Nano Letters·Arka MajumdarFeng Wang
May 8, 2013·ACS Nano·Giuseppe PirruccioJaime Gómez Rivas
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Dec 17, 2015·Nano Letters·Tim EchtermeyerAndrea C Ferrari
Apr 23, 2015·ACS Applied Materials & Interfaces·Le HuangLian-Mao Peng
Mar 31, 2015·Nano Letters·Sidong LeiNaomi J Halas
Apr 15, 2015·Nano Letters·Xinghan CaiH Dennis Drew
Jul 26, 2014·ACS Nano·Seong Hun YuJeong Ho Cho
Nov 7, 2014·Nano Letters·S SchwarzA I Tartakovskii
Dec 4, 2015·Scientific Reports·Yulu ChenZuimin Jiang
Feb 6, 2015·Scientific Reports·Mingda Zhang, Xiangdong Zhang
Dec 19, 2013·Scientific Reports·Qi HanDapeng Yu
Jan 24, 2014·Scientific Reports·Wenjing ZhangLain-Jong Li
Mar 22, 2016·Scientific Reports·Yang HuangLei Gao
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Dec 25, 2013·ACS Nano·Fucai LiuKatsumi Tanigaki
May 2, 2014·ACS Applied Materials & Interfaces·Prarthana GowdaAbha Misra

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