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General relation between spatial coherence and absorption
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DOI：10.1364/OE.405484.png)
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Despite the fact that incandescent sources are usually spatially incoherent, it has been known for some time that a proper design of a thermal source can modify its spatial coherence. A natural question is whether it is possible to extend this analysis to electroluminescence and photoluminescence. A theoretical framework is needed to explore these properties. In this paper, we extend a general coherence-absorption relation valid at equilibrium to two non-equilibrium cases: luminescent bodies and anisothermal bodies. We then use this relation to analyse the differences between the isothermal and anisothermal cases and to study the near-field emission of an electroluminescent source. (c) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
PLANCK LAW
ELECTROMAGNETIC-FIELDS
EMISSION
LUMINESCENCE
VERIFICATION
RADIATION
NOISE
LIGHT
WAVES
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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PHYSICAL REVIEW B
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PHYSICAL REVIEW BIF3.7
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