Near-field thermal radiation transfer controlled by plasmons in graphene

Ilic, Ognjen; Jablan, Marinko; Joannopoulos, John D.; Čelanović, Ivan; Buljan, Hrvoje; Soljačić, Marin

doi:10.1103/physrevb.85.155422

Cited by 219 publications

(173 citation statements)

References 29 publications

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“…Examples include surface phonon polaritons that can exist at the surface of polar dielectric materials such as SiO 2 and SiC, or surface plasmon polaritons (SPPs) that can be supported between metallic surfaces or structures [13][14][15][16][17]. Recently, it is demonstrated that surface plasmons in graphene can also achieve a similar role to enhance the photon tunneling between two graphene sheets [18]. Besides the surface polaritons, bulk materials constructed with periodically stacked sub-wavelength metallic and dielectric layers can also enhance near-field heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Near-field heat transfer between graphene/hBN multilayers

et al. 2017

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We study the radiative heat transfer between multilayer structures made by a periodic repetition of a graphene sheet and a hexagonal boron nitride (hBN) slab. Surface plasmons in a monolayer graphene can couple with a hyperbolic phonon polaritons in a single hBN film to form hybrid polaritons that can assist photon tunneling. For periodic multilayer graphene/hBN structures, the stacked metallic/dielectric array can give rise to a further effective hyperbolic behavior, in addition to the intrinsic natural hyperbolic behavior of hBN. The effective hyperbolicity can enable more hyperbolic polaritons that enhance the photon tunneling and hence the near-field heat transfer. However, the hybrid polaritons on the surface, i.e. surface plasmon-phonon polaritons, dominate the near-field heat transfer between multilayer structures when the topmost layer is graphene. The effective hyperbolic regions can be well predicted by the effective medium theory (EMT), thought EMT fails to capture the hybrid surface polaritons and results in a heat transfer rate much lower compared to the exact calculation. The chemical potential of the graphene sheets can be tuned through electrical gating and results in an additional modulation of the heat transfer. We found that the near-field heat transfer between multilayer structure does not increase monotonously with the number of layer in the stack, which provides a way to control the heat transfer rate by the number of graphene layers in the multilayer structure. The results may benefit the applications of near-field energy harvesting and radiative cooling based on hybrid polaritons in two-dimensional materials.

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Section: Introductionmentioning

confidence: 99%

Near-field heat transfer between graphene/hBN multilayers

et al. 2017

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“…Moreover, active light sources currently used for exciting GSPs, such as infrared lasers, cannot be easily miniaturized and integrated into optoelectronic circuits [2,14]. Since GSPs exist in the infrared and terahertz regime, they can be thermally * Corresponding author: sshen1@cmu.edu excited by the infrared evanescent waves emitted from an object [15]. However, compared with active light sources like lasers, thermal emission usually has a broad spectrum with low output power limited by the blackbody radiation [16].…”

Section: Introductionmentioning

confidence: 99%

Thermal plasmonic interconnects in graphene

Liu

Shen

2014

Phys. Rev. B

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As one emerging plasmonic material, graphene can support surface plasmons at infrared and terahertz frequencies with unprecedented properties due to the strong interactions between graphene and low-frequency photons. Since graphene surface plasmons exist in the infrared and terahertz regime, they can be thermally pumped (excited) by the infrared evanescent waves emitted from an object. Here we show that thermal graphene plasmons can be efficiently excited and have monochromatic and tunable spectra, thus paving a way to harness thermal energy for graphene plasmonic devices. We further demonstrate that "thermal information communication" via graphene surface plasmons can be potentially realized by effectively harnessing thermal energy from various heat sources, e.g., the waste heat dissipated from nanoelectronic devices. These findings open up an avenue of thermal plasmonics based on graphene for different applications ranging from infrared emission control, to information processing and communication, to energy harvesting.

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“…One fundamental distinction between "near-field" effects (between objects at wavelength-scale separations or less) and the more familiar "far-field" phenomena (separations ≫ wavelength) is that the former can be significantly enhanced by the contributions of evanescent waves, 6,56,59,60 growing in a power-law fashion with decreasing object separations. As a result, the heat transfer between real materials can exceed the predictions of the Stefan-Boltzmann law by orders of magnitude 13 and quantum forces can reach atmospheric pressures at nanometric lengthscales, 21 motivating interest in complex designs that can be tailored for various applications, including thermophotovoltaic energy conversion, [61][62][63][64] nanoscale cooling, 65,66 and MEMS design. [67][68][69] Until very recently, however, calculations and experiments remained focused on planar structures and simple approximations thereof.…”

Section: Introductionmentioning

confidence: 99%

Fluctuating volume-current formulation of electromagnetic fluctuations in inhomogeneous media: Incandescence and luminescence in arbitrary geometries

et al. 2015

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We describe a fluctuating volume-current formulation of electromagnetic fluctuations that extends our recent work on heat exchange and Casimir interactions between arbitrarily shaped homogeneous bodies [Phys. Rev. B. 88, 054305] to situations involving incandescence and luminescence problems, including thermal radiation, heat transfer, Casimir forces, spontaneous emission, fluorescence, and Raman scattering, in inhomogeneous media. Unlike previous scattering formulations based on field and/or surface unknowns, our work exploits powerful techniques from the volume-integral equation (VIE) method, in which electromagnetic scattering is described in terms of volumetric, current unknowns throughout the bodies. The resulting trace formulas (boxed equations) involve products of well-studied VIE matrices and describe power and momentum transfer between objects with spatially varying material properties and fluctuation characteristics. We demonstrate that thanks to the low-rank properties of the associated matrices, these formulas are susceptible to fast-trace computations based on iterative methods, making practical calculations tractable. We apply our techniques to study thermal radiation, heat transfer, and fluorescence in complicated geometries, checking our method against established techniques best suited for homogeneous bodies as well as applying it to obtain predictions of radiation from complex bodies with spatially varying permittivities and/or temperature profiles.

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Near-field thermal radiation transfer controlled by plasmons in graphene

Cited by 219 publications

References 29 publications

Near-field heat transfer between graphene/hBN multilayers

Near-field heat transfer between graphene/hBN multilayers

Thermal plasmonic interconnects in graphene

Fluctuating volume-current formulation of electromagnetic fluctuations in inhomogeneous media: Incandescence and luminescence in arbitrary geometries

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