Experimental Study on Coherence of Thermal Radiation of Thin Film Structures

Liang, Xin-Gang; Han, Min−Koo

doi:10.1088/0256-307x/23/5/043

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…One likely photonic structure highlighted by Liang and Han 71 is a multilayered coating comprising two materials with different refractive index. Similar to the Bragg Reflector, where the film thickness is comparable to the incoming wavelength, interference becomes an important mechanism here.…”

Section: Thermal Coatingsmentioning

confidence: 99%

Review: Thermal ceramic coatings as energy saving alternatives for high temperature processes

Sako

Orsolini

Moreira

et al. 2020

Int J Applied Ceramic Tech

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Reductions in energy consumption for high temperature processes are an important research topic, especially due to the ongoing energy crisis scenario. Based on the several possibilities of saving it, thermal coatings are an economical and technical viable possibility of tailoring the optical properties of a material surface. Although many studies have been published on the benefits of high emissivity and high reflectivity ceramic coatings, there is still a lack of a clear understanding on the correlation between thermal radiation heat transfer, solid state physics, and material science technology. This study aims to create a connection between these areas in order to provide basic guidelines for the correct use of thermal ceramic coatings, leading to achieving the maximum decrease in energy consumption by their use.

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Section: Thermal Coatingsmentioning

confidence: 99%

Review: Thermal ceramic coatings as energy saving alternatives for high temperature processes

Sako

Orsolini

Moreira

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

Negative luminescence and thermal radiation in semiconductor planar resonator structures

Liptuga

Morozhenko

Pipa

et al. 2012

Infrared Physics & Technology

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Spatial coherence of the thermal electromagnetic field in the vicinity of a dielectric slab

et al. 2007

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We present the analytic calculation of the cross-spectral density tensor of a thermally radiative planar dielectric slab in extreme near-field, intermediate near-field, and far-field zones. We show that the spatial coherence of the thermal field exhibits distinct features in these zones. At a given wavelength lambda , the coherence length is many orders of magnitude smaller than lambda in the extreme near-field zone, and is roughly lambda/2 in the far-field zone. In the intermediate near-field zone, the coherence length can be much longer than lambda/2 if the loss is small. The physical origin of the short-ranged spatial coherence in the extreme near-field zone is the spatially fluctuating surface charges at the air-dielectric interface. We also demonstrate that in the intermediate near-field zone, the long-ranged spatial coherence is induced by the waveguide modes of the dielectric slab. When the loss is small, the long-ranged coherence falls off approximately as 1/square root x , in contrast to 1/x for a blackbody radiator, where x refers to displacement parallel to the slab surface.

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Experimental Study on Coherence of Thermal Radiation of Thin Film Structures

Cited by 4 publications

References 15 publications

Review: Thermal ceramic coatings as energy saving alternatives for high temperature processes

Review: Thermal ceramic coatings as energy saving alternatives for high temperature processes

Negative luminescence and thermal radiation in semiconductor planar resonator structures

Spatial coherence of the thermal electromagnetic field in the vicinity of a dielectric slab

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