Great light absorption enhancement in a graphene photodetector integrated with a metamaterial perfect absorber.
A novel graphene photodetector with graphene embedded in a metamaterial perfect absorber (MPA) is proposed and its light absorption property is numerically investigated. Absorption above 40% in graphene is obtained, which is over 17 times that of a bare monolayer graphene. Both horizontally and vertically cascaded MPAs integrated with graphene are also investigated.
Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou 215123, China. qchen2012@sinano.ac.cn.
Shichao
S
Song
Qin
Q
Chen
Lin
L
Jin
Fuhe
F
Sun