Journal
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume 110, Issue 18, Pages 2002-2018Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2009.05.010
Keywords
Near-field thermal radiation; One-dimensional layered media; Scattering matrix method; Radiative heat flux; Numerical solution; Cubic boron nitride
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Funding
- US Department of Energy [DE-FG02-07ER46375]
- Kentucky Science and Engineering Foundation [KSEF-1718-RDE-011]
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A general algorithm is introduced for the analysis of near-field radiative heat transfer in one-dimensional multi-layered structures. The method is based on the solution of dyadic Green's functions, where the amplitude of the fields in each layer is calculated via a scattering matrix approach. Several tests are presented where cubic boron nitride is used in the simulations. It is shown that a film emitter thicker than I urn provides the same spectral distribution of near-field radiative flux as obtained from a bulk emitter. Further simulations have pointed out that the presence of a body in close proximity to an emitter can alter the near-field spectrum emitted. This algorithm can be employed to study thermal one-dimensional layered media and photonic crystals in the near-field in order to design radiators optimizing the performances of nanoscale-gap thermophotovoltaic power generators. (c) 2009 Elsevier Ltd. All rights reserved.
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