Shape-Independent Limits to Near-Field Radiative Heat Transfer

Miller, Owen D.; Johnson, Steven G.; Rodríguez, Alejandro W.

doi:10.1103/physrevlett.115.204302

Cited by 91 publications

(127 citation statements)

References 78 publications

(107 reference statements)

Supporting

Mentioning

123

Contrasting

Order By: Relevance

“…As recently shown in refs [27][28][29] , for a generic electromagnetic scattering problem, passivity-the condition that polarization currents do no net work-constrains the maximum optical response from a given incident field. Consider three power quantities derived from F inc and the total field F within the scatterer volume V: the total power lost by the electron,…”

mentioning

confidence: 99%

Maximal spontaneous photon emission and energy loss from free electrons

et al. 2018

Self Cite

View full text Add to dashboard Cite

Free electron radiation such as Cerenkov [1], Smith-Purcell [2], and transition radiation [3,4] can be greatly affected by structured optical environments, as has been demonstrated in a variety of polaritonic [5,6], photoniccrystal [7], and metamaterial [8-10] systems. However, the amount of radiation that can ultimately be extracted from free electrons near an arbitrary material structure has remained elusive. Here we derive a fundamental upper limit to the spontaneous photon emission and energy loss of free electrons, regardless of geometry, which illuminates the effects of material properties and electron velocities. We obtain experimental evidence for our theory with quantitative measurements of Smith-Purcell radiation. Our framework allows us to make two predictions. One is a new regime of radiation operation-at subwavelength separations, slower (nonrelativistic) electrons can achieve stronger radiation than fast (relativistic) electrons. The second is a divergence of the emission probability in the limit of lossless materials. We further reveal that such divergences can be approached by coupling free electrons to photonic bound states in the continuum (BICs) [11][12][13]. Our findings suggest that compact and efficient free-electron radiation sources from microwaves to the soft X-ray regime may be achievable without requiring ultrahigh accelerating voltages.The Smith-Purcell effect epitomizes the potential of freeelectron radiation. Consider an electron at velocity β = v/c traversing a structure with periodicity a; it generates far-field radiation at wavelength λ and polar angle θ, dictated by [2] λ = a m

show abstract

mentioning

confidence: 99%

Maximal spontaneous photon emission and energy loss from free electrons

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…It has been shown recently that this performance can even be improved drastically by covering HMM with graphene [106] so that even the theoretical limit derived in [23,107] is reached. Most of these works on nanowire HMM are based on EMT because a full numerical treatment is not as simple as for mHMM.…”

Section: Discussionmentioning

confidence: 99%

Near-Field Heat Transfer between Multilayer Hyperbolic Metamaterials

Biehs

Ben‐Abdallah

2016

Zeitschrift Für Naturforschung A

View full text Add to dashboard Cite

Abstract:We review the near-field radiative heat flux between hyperbolic materials focusing on multilayer hyperbolic meta-materials. We discuss the formation of the hyperbolic bands, the impact of ordering of the multilayer slabs, as well as the impact of the first single layer on the heat transfer. Furthermore, we compare the contribution of surface modes to that of hyperbolic modes. Finally, we also compare the exact results with predictions from effective medium theory.

show abstract

“…The radiative heat transfer between a single nano/micro-particle and a plane surface has been extensively investigated [10][11][12][13][14][15]. The scattering of light by a nano/micro-particle placed in front of a substrate has also attracted particular interest [16].…”

Section: Introductionmentioning

confidence: 99%

Temperature of a nanoparticle above a substrate under radiative heating and cooling

Kallel¹,

Carminati²,

Joulain³

2017

Phys. Rev. B

View full text Add to dashboard Cite

Controlling the temperature in architectures involving nanoparticles and substrates is a key issue for applications involving micro and nanoscale heat transfer. We study the thermal behavior of a single nanoparticle interacting with a flat substrate under external monochromatic illumination, and with thermal radiation as the unique heat loss channel. We develop a model to compute the temperature of the nanoparticle, based on an effective dipole-polarizability approach. Using numerical simulations, we thoroughly investigate the impacts of various parameters affecting the nanoparticle temperature, such as the nanoparticle-to-substrate gap distance, the incident light wavelength and polarization, or the material resonances. This study provides a tool for the thermal characterization and design of micro or nanoscale systems coupling substrates with nanoparticles or optical antennas.

show abstract

Shape-Independent Limits to Near-Field Radiative Heat Transfer

Cited by 91 publications

References 78 publications

Maximal spontaneous photon emission and energy loss from free electrons

Maximal spontaneous photon emission and energy loss from free electrons

Near-Field Heat Transfer between Multilayer Hyperbolic Metamaterials

Temperature of a nanoparticle above a substrate under radiative heating and cooling

Contact Info

Product

Resources

About