Electronic modulation of infrared radiation in graphene plasmonic resonators
Abstract
All matter at finite temperatures emits electromagnetic radiation due to the thermally induced motion of particles and quasiparticles. Dynamic control of this radiation could enable the design of novel infrared sources; however, the spectral characteristics of the radiated power are dictated by the electromagnetic energy density and emissivity, which are ordinarily fixed properties of the material and temperature. Here we experimentally demonstrate tunable electronic control of blackbody emission from graphene plasmonic resonators on a silicon nitride substrate. It is shown that the graphene resonators produce antenna-coupled blackbody radiation, which manifests as narrow spectral emission peaks in the mid-infrared. By continuously varying the nanoresonator carrier density, the frequency and intensity of these spectral features can be modulated via an electrostatic gate. This work opens the door for future devices that may control blackbody radiation at timescales beyond the limits of conventional thermo-optic modulation.
Additional Information
© 2015 Macmillan Publishers Limited. Received 14 August 2014; Accepted 26 March 2015; Published 07 May 2015. The experimental design, fabrication and characterization of tunable emission structures was supported by the 'Light-Material Interactions in Energy Conversion' Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001293. M.S.J. and M.C. acknowledge support for modelling and simulation from the Global Frontier R&D Program on Center for Multiscale Energy Systems funded by the National Research Foundation under the Ministry of Science, ITC & Future Planning, Korea (2011-0031561, 2014M3A6A7060584). M.C.S. acknowledges support from a Resnick Institute Graduate Fellowship. M.S.J. acknowledges a post-doctoral fellowship from the POSCO TJ Park Foundation. V.W.B. acknowledges support from a Kavli Nanoscience Postdoctoral Fellowship and use of facilities of the Kavli Nanoscience Institute. Contributions: V.W.B., M.C.S.., M.S.J., L.A.S. and H.A.A. conceived the experiment, V.W.B and S.K. fabricated the sample, and V.W.B.and L.A.S. performed measurements and data analysis. M.C.S. performed and analysed FEM simulations. V.W.B. M.C.S., M.S.J. and H.A.A. wrote the paper based on discussions with M.C.Attached Files
Published - ncomms8032.pdf
Submitted - 1405.4145.pdf
Supplemental Material - ncomms8032-s1.pdf
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Additional details
- Alternative title
- Electronic modulation of infrared emissivity in graphene plasmonic resonators
- Eprint ID
- 46049
- Resolver ID
- CaltechAUTHORS:20140603-115311871
- DE-SC0001293
- Department of Energy (DOE)
- 2011-0031561
- National Research Foundation of Korea
- 2014M3A6A7060584
- National Research Foundation of Korea
- Resnick Sustainability Institute
- POSCO TJ Park Foundation
- Kavli Nanoscience Institute
- Created
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2014-06-03Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Resnick Sustainability Institute, Kavli Nanoscience Institute