Mesoscopic Non-Equilibrium Thermodynamics: Application to Radiative Heat Exchange in Nanostructures

Pérez‐Madrid, A.; Rubı́, J. M.; Lapas, Luciano C.

doi:10.5772/13138

Cited by 3 publications

(3 citation statements)

References 19 publications

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“…In 1983, Brakat and Brosseau investigated the entropy of N partially coherent pencils of radiation. The entropy of far-field thermal radiation has been studied extensively in the second half of last century and in the first decade of this century [99,145,153,[156][157][158][159][160][161][162]. For example, the entropy of graybody radiation was calculated [163]; the near-field radiation and farfield radiation were compared by extending the far-field theory to near-field concept without taking near-field effects into consideration actually [164], the radiative entropy generation was studied for the participating media between blackbody walls while neglecting the entropy generation at the walls, which could be important [165,166].…”

Section: Entropy Transfer: Entropy Due To Near-field Radiative Energy...mentioning

confidence: 99%

Review of fluctuational electrodynamics and its applications to radiative momentum, energy and entropy transport

Zheng

2014

Preprint

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Quantum and thermal fluctuations of electromagnetic fields, which give rise to Planck's law of blackbody radiation, are also responsible for van der Waals and Casimir forces, as well as near-field radiative energy transfer between objects. Electromagnetic waves transport energy, momentum, and entropy. For classical thermal radiation, the dependence of the above mentioned quantities on the temperature is well-known mainly due to Planck's work. When near-field effects, namely the collective influence of diffraction, interference, and tunneling of waves, become important, Planck's theory is no longer valid. Of momentum, energy, and entropy transfer, the role of near-field effects on momentum transfer between two half-spaces separated by a vacuum gap (van der Waals pressure in the vacuum gap) was first determined by Lifshitz, using Rytov's theory of fluctuational electrodynamics in 1956. Subsequently, Dzyaloshinskii, Lifshitz, and Pitaevskii, employing sophisticated methods from quantum field theory, generalized Lifshitz' result for van der Waals pressure in a vacuum layer to the case of van der Waals pressure in a dissipative layer between two half-spaces. The influence of near-field effects on radiative transfer was appreciated only in the late 1960s and, subsequently, in the last two decades because of the enhancement in radiative transfer due to electromagnetic surface waves. The role played by near-field effects on entropy transfer has not been investigated so far, at least when the temperature distribution is non-uniform.

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Section: Entropy Transfer: Entropy Due To Near-field Radiative Energy...mentioning

confidence: 99%

Review of fluctuational electrodynamics and its applications to radiative momentum, energy and entropy transport

Zheng

2014

Preprint

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“…V, the entropy flux in thermal equilibrium is identically equal to zero (as is energy flux). We should also mention that Perez-Madrid et al [21][22][23] have treated energy transfer between two objects under the framework of mesoscopic nonequilibrium thermodynamics. Although the word "entropy"appears a few times in their works, it has little to do with the near-field entropy density or flux in this study.…”

Section: Introductionmentioning

confidence: 99%

Theory of thermal nonequilibrium entropy in near-field thermal radiation

Narayanaswamy

Zheng

2013

Phys. Rev. B

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We propose a theoretical formalism to evaluate the entropy density and entropy flux that takes into account near-field effects, i.e., interference, diffraction, and tunneling of waves. Using the fluctuation-dissipation theorem, expressions for entropy density and entropy flux in a vacuum cavity between planar multilayered media are derived in terms of local density of photons, local density of accessible microscopic states, and velocity of energy transmission. The proposed method is used to determine the maximum work that can be extracted and a thermodynamic limit of the energy conversion efficiency that can be obtained in near-field thermal radiation.

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“…A further approach of mesoscopic nonequilibrium thermodynamics is currently developed for investigation of soft-matter problem with mesoscopic structural elements [25][26][27][28]. The method addresses the systems entropy production, which is a detectable quantity at the mesoscopic level of condensed-matter organization; it also reveals effectively the kinetic-thermodynamics properties and peculiarities of the corresponding dynamic matter arrangements.…”

Section: Introductionmentioning

confidence: 99%