Infrared beam-steering using acoustically modulated surface plasmons over a graphene monolayer

Handle URI:
http://hdl.handle.net/10754/563747
Title:
Infrared beam-steering using acoustically modulated surface plasmons over a graphene monolayer
Authors:
Chen, Paiyen; Farhat, Mohamed; Askarpour, Amir Nader; Tymchenko, Mykhailo; Alù, Andrea
Abstract:
We model and design a graphene-based infrared beamformer based on the concept of leaky-wave (fast traveling wave) antennas. The excitation of infrared surface plasmon polaritons (SPPs) over a 'one-atom-thick' graphene monolayer is typically associated with intrinsically 'slow light'. By modulating the graphene with elastic vibrations based on flexural waves, a dynamic diffraction grating can be formed on the graphene surface, converting propagating SPPs into fast surface waves, able to radiate directive infrared beams into the background medium. This scheme allows fast on-off switching of infrared emission and dynamic tuning of its radiation pattern, beam angle and frequency of operation, by simply varying the acoustic frequency that controls the effective grating period. We envision that this graphene beamformer may be integrated into reconfigurable transmitter/receiver modules, switches and detectors for THz and infrared wireless communication, sensing, imaging and actuation systems.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program
Publisher:
IOP Publishing
Journal:
Journal of Optics
Issue Date:
1-Sep-2014
DOI:
10.1088/2040-8978/16/9/094008
Type:
Article
ISSN:
20408978
Sponsors:
The authors would like to thank Dr Sebastien Guenneau for fruitful discussions on graphene acoustics. This work has been partially supported by the Welch Foundation with grant no. F-1662, the Army Research Office with grant no. W911NF-08-1-0348 and the Air Force Office of Scientific Research with grant no. FA9550-13-1-0204.
Appears in Collections:
Articles; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorChen, Paiyenen
dc.contributor.authorFarhat, Mohameden
dc.contributor.authorAskarpour, Amir Naderen
dc.contributor.authorTymchenko, Mykhailoen
dc.contributor.authorAlù, Andreaen
dc.date.accessioned2015-08-03T12:08:46Zen
dc.date.available2015-08-03T12:08:46Zen
dc.date.issued2014-09-01en
dc.identifier.issn20408978en
dc.identifier.doi10.1088/2040-8978/16/9/094008en
dc.identifier.urihttp://hdl.handle.net/10754/563747en
dc.description.abstractWe model and design a graphene-based infrared beamformer based on the concept of leaky-wave (fast traveling wave) antennas. The excitation of infrared surface plasmon polaritons (SPPs) over a 'one-atom-thick' graphene monolayer is typically associated with intrinsically 'slow light'. By modulating the graphene with elastic vibrations based on flexural waves, a dynamic diffraction grating can be formed on the graphene surface, converting propagating SPPs into fast surface waves, able to radiate directive infrared beams into the background medium. This scheme allows fast on-off switching of infrared emission and dynamic tuning of its radiation pattern, beam angle and frequency of operation, by simply varying the acoustic frequency that controls the effective grating period. We envision that this graphene beamformer may be integrated into reconfigurable transmitter/receiver modules, switches and detectors for THz and infrared wireless communication, sensing, imaging and actuation systems.en
dc.description.sponsorshipThe authors would like to thank Dr Sebastien Guenneau for fruitful discussions on graphene acoustics. This work has been partially supported by the Welch Foundation with grant no. F-1662, the Army Research Office with grant no. W911NF-08-1-0348 and the Air Force Office of Scientific Research with grant no. FA9550-13-1-0204.en
dc.publisherIOP Publishingen
dc.subjectacousticsen
dc.subjectbeam steeringen
dc.subjectgrapheneen
dc.subjectleaky-wavesen
dc.subjectmetamaterialsen
dc.titleInfrared beam-steering using acoustically modulated surface plasmons over a graphene monolayeren
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journalJournal of Opticsen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Texas at AustinAustin, TX, United Statesen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Wayne State UniversityDetroit, MI, United Statesen
kaust.authorFarhat, Mohameden
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