title: Integration of conductive reduced graphene oxide into microstructured optical fibres for optoelectronics applications.
abstract: Integration of conductive materials into optical fibres can largely expand functions of fibre devices including surface plasmon resonator/metamaterial, modulators/detectors, or biosensors. Some early attempts have been made to incorporate metals such as tin into fibres during the fibre drawing process. Due to the restricted range of materials that have compatible melting temperatures with that of silica glass, the methods to incorporate metals along the length of the fibres are very challenging. Moreover, metals are nontransparent with strong light absorption, which causes high fibre loss. This article demonstrates a novel but simple method for creating transparent conductive reduced graphene oxide film onto microstructured silica fibres for potential optoelectronic applications. The strongly confined evanescent field of the suspended core fibres with only 2 μW average power was creatively used to transform graphene oxide into reduced graphene oxide with negligible additional loss. Existence of reduced graphene oxide was confirmed by their characteristic Raman signals, shifting of their fluorescence peaks as well as largely decreased resistance of the bulk GO film after laser beam exposure.
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics, Adelaide, SA 5005, Australia.|Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, SA 5005, Australia.
authors.forename: Yinlan
authors.initials: Y
authors.lastname: Ruan
authors.affiliation: National Engineering Laboratory for Fibre Optic Sensing Technology, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Liyun
authors.initials: L
authors.lastname: Ding
authors.affiliation: School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Duan
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics, Adelaide, SA 5005, Australia.|Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, SA 5005, Australia.
authors.forename: Heike
authors.initials: H
authors.lastname: Ebendorff-Heidepriem
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics, Adelaide, SA 5005, Australia.|Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, SA 5005, Australia.|University of South Australia, Adelaide, SA 5001, Australia.
authors.forename: Tanya M
authors.initials: TM
authors.lastname: Monro