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Title: Giant enhancement of nanoscale thermal radiation based on hyperbolic graphene plasmons

Abstract

Excitation of surface plasmons enables super-Planckian thermal radiation far beyond the blackbody limit. By patterning a single layer of graphene sheet into ribbons, the closed circular dispersion of graphene plasmons is opened to become hyperbolic, leading to broadband singularities of density of states. Extremely high-k evanescent waves can now couple with hyperbolic graphene plasmons. Consequently, a giant enhancement of the near-field radiative heat flux, by more than one order of magnitude, is demonstrated in this study using rigorous numerical simulations. The findings may open promising pathways for highly efficient thermal management, energy harvesting, and sub-wavelength thermal imaging.

Authors:
Publication Date:
OSTI Identifier:
22482223
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 14; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; DENSITY OF STATES; EXCITATION; GRAPHENE; HEAT FLUX; NANOSTRUCTURES; PLASMONS; THERMAL RADIATION; WAVELENGTHS

Citation Formats

Liu, X. L., and Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu. Giant enhancement of nanoscale thermal radiation based on hyperbolic graphene plasmons. United States: N. p., 2015. Web. doi:10.1063/1.4932958.
Liu, X. L., & Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu. Giant enhancement of nanoscale thermal radiation based on hyperbolic graphene plasmons. United States. doi:10.1063/1.4932958.
Liu, X. L., and Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu. Mon . "Giant enhancement of nanoscale thermal radiation based on hyperbolic graphene plasmons". United States. doi:10.1063/1.4932958.
@article{osti_22482223,
title = {Giant enhancement of nanoscale thermal radiation based on hyperbolic graphene plasmons},
author = {Liu, X. L. and Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu},
abstractNote = {Excitation of surface plasmons enables super-Planckian thermal radiation far beyond the blackbody limit. By patterning a single layer of graphene sheet into ribbons, the closed circular dispersion of graphene plasmons is opened to become hyperbolic, leading to broadband singularities of density of states. Extremely high-k evanescent waves can now couple with hyperbolic graphene plasmons. Consequently, a giant enhancement of the near-field radiative heat flux, by more than one order of magnitude, is demonstrated in this study using rigorous numerical simulations. The findings may open promising pathways for highly efficient thermal management, energy harvesting, and sub-wavelength thermal imaging.},
doi = {10.1063/1.4932958},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 14,
volume = 107,
place = {United States},
year = {2015},
month = {10}
}

Works referencing / citing this record:

Enhanced Photon Tunneling by Surface Plasmon–Phonon Polaritons in Graphene/hBN Heterostructures
journal, October 2016

  • Zhao, B.; Zhang, Z. M.
  • Journal of Heat Transfer, Vol. 139, Issue 2
  • DOI: 10.1115/1.4034793