Experimental demonstration of a transparent graphene millimetre wave absorber with 28% fractional bandwidth at 140 GHz

Hdl Handle:
http://hdl.handle.net/10034/606031
Title:
Experimental demonstration of a transparent graphene millimetre wave absorber with 28% fractional bandwidth at 140 GHz
Authors:
Wu, Bian; Tuncer, Hatice M.; Naeem, Majid; Yang, Bin; Cole, Matthew T.; Milne, William I.; Hao, Yang
Abstract:
The development of transparent radio-frequency electronics has been limited, until recently, by the lack of suitable materials. Naturally thin and transparent graphene may lead to disruptive innovations in such applications. Here, we realize optically transparent broadband absorbers operating in the millimetre wave regime achieved by stacking graphene bearing quartz substrates on a ground plate. Broadband absorption is a result of mutually coupled Fabry-Perot resonators represented by each graphene-quartz substrate. An analytical model has been developed to predict the absorption performance and the angular dependence of the absorber. Using a repeated transfer-and-etch process, multilayer graphene was processed to control its surface resistivity. Millimetre wave reflectometer measurements of the stacked graphene-quartz absorbers demonstrated excellent broadband absorption of 90% with a 28% fractional bandwidth from 125-165 GHz. Our data suggests that the absorbers’ operation can also be extended to microwave and low-terahertz bands with negligible loss in performance.
Affiliation:
Queen Mary University of London
Citation:
Wu, B., Tuncer, H. M., Naeem, M., Yang, B., Cole, M. T., Milne, W. I., & Hao, Y. (2014). Experimental demonstration of a transparent graphene millimetre wave absorber with 28% fractional bandwidth at 140 GHz. Scientific Reports 4, Article number 4130. http://dx.doi.org/doi:10.1038/srep04130
Publisher:
Nature Publishing Group
Journal:
Scientific Reports
Publication Date:
19-Feb-2014
URI:
http://hdl.handle.net/10034/606031
DOI:
doi:10.1038/srep04130
Type:
Article
Language:
en
ISSN:
2045-2322
Appears in Collections:
Electronic and Electrical Engineering

Full metadata record

DC FieldValue Language
dc.contributor.authorWu, Bianen
dc.contributor.authorTuncer, Hatice M.en
dc.contributor.authorNaeem, Majiden
dc.contributor.authorYang, Binen
dc.contributor.authorCole, Matthew T.en
dc.contributor.authorMilne, William I.en
dc.contributor.authorHao, Yangen
dc.date.accessioned2016-04-20T09:52:15Zen
dc.date.available2016-04-20T09:52:15Zen
dc.date.issued2014-02-19en
dc.identifier.citationWu, B., Tuncer, H. M., Naeem, M., Yang, B., Cole, M. T., Milne, W. I., & Hao, Y. (2014). Experimental demonstration of a transparent graphene millimetre wave absorber with 28% fractional bandwidth at 140 GHz. Scientific Reports 4, Article number 4130. http://dx.doi.org/doi:10.1038/srep04130en
dc.identifier.issn2045-2322en
dc.identifier.doidoi:10.1038/srep04130en
dc.identifier.urihttp://hdl.handle.net/10034/606031en
dc.description.abstractThe development of transparent radio-frequency electronics has been limited, until recently, by the lack of suitable materials. Naturally thin and transparent graphene may lead to disruptive innovations in such applications. Here, we realize optically transparent broadband absorbers operating in the millimetre wave regime achieved by stacking graphene bearing quartz substrates on a ground plate. Broadband absorption is a result of mutually coupled Fabry-Perot resonators represented by each graphene-quartz substrate. An analytical model has been developed to predict the absorption performance and the angular dependence of the absorber. Using a repeated transfer-and-etch process, multilayer graphene was processed to control its surface resistivity. Millimetre wave reflectometer measurements of the stacked graphene-quartz absorbers demonstrated excellent broadband absorption of 90% with a 28% fractional bandwidth from 125-165 GHz. Our data suggests that the absorbers’ operation can also be extended to microwave and low-terahertz bands with negligible loss in performance.en
dc.language.isoenen
dc.publisherNature Publishing Groupen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectGraphene; THz; Absorberen
dc.titleExperimental demonstration of a transparent graphene millimetre wave absorber with 28% fractional bandwidth at 140 GHzen
dc.typeArticleen
dc.contributor.departmentQueen Mary University of Londonen
dc.identifier.journalScientific Reportsen
dc.date.accepted2014-02-04en
or.grant.openaccessYesen
rioxxterms.funderunfundeden
rioxxterms.identifier.projectunfundeden
rioxxterms.versionAMen
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