Details

Autor(en) / Beteiligte

• Tihon, D.
• Withington, S.
• Bailly, E.
• Vest, B.
• Greffet, J.-J.

Titel

General relation between spatial coherence and absorption

Ist Teil von

• Optics express, 2021-01, Vol.29 (1), p.425

Ort / Verlag

Optical Society of America - OSA Publishing

Erscheinungsjahr

2021

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• 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.