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arXiv 2005.05087physics.optics
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空间相干性与吸收的一般关系

General relation between spatial coherence and absorption

Denis Tihon, Stafford Withington, Elise Bailly, Benjamin Vest, Jean-Jacques Greffet

摘要:

尽管白炽光源通常在空间上是不相干的,但一段时间以来已知热源的适当设计可以修改其空间相干性。一个自然的问题是,是否有可能将这种分析扩展到电致发光和光致发光。需要一个理论框架来探索这些特性。在本文中,我们推广了一般的相干吸收关系在平衡有效的两个非平衡的情况下:发光体和非等温体。然后,我们使用这个关系来分析等温和非等温的情况下,并研究电致发光源的近场发射之间的差异。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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