title: Broadband photodetection in a microfiber-graphene device.
abstract: We propose and experimentally demonstrate a microfiber-graphene device. Owing to the interaction between the graphene film and the evanescent field leaked from the microfiber, the hybrid photoconductive device exhibits a high photoresponse. A maximum photocurrent responsivity of ~2.81 mA/W is achieved in the telecommunication band. A nearly flat photoresponse spectrum within broad operational band ranging from 1500 nm to 1600 nm is also obtained as a consequence of the dispersionless and flat absorption of graphene. These results show that the proposed photocurrent generation device could provide an effective solution for broadband photodetection.
authors.forename: Xiaowen
authors.initials: X
authors.lastname: Sun
authors.forename: Ciyuan
authors.initials: C
authors.lastname: Qiu
authors.forename: Jiayang
authors.initials: J
authors.lastname: Wu
authors.forename: Huanying
authors.initials: H
authors.lastname: Zhou
authors.forename: Ting
authors.initials: T
authors.lastname: Pan
authors.forename: Junming
authors.initials: J
authors.lastname: Mao
authors.forename: Xi
authors.initials: X
authors.lastname: Yin
authors.forename: Ruili
authors.initials: R
authors.lastname: Liu
authors.forename: Weilu
authors.initials: W
authors.lastname: Gao
authors.forename: Zheyu
authors.initials: Z
authors.lastname: Fang
authors.forename: Yikai
authors.initials: Y
authors.lastname: Su