General relation between spatial coherence and absorption

Abstract

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.

arXiv comment16 pages, 3 figures

References in corpus (10)

• Surface Electromagnetic Waves Thermally Excited: Radiative Heat Transfer, Coherence Properties and Casimir Forces Revisited in the Near Field
• Coherent emission from a disordered organic semiconductor induced by strong coupling with surface plasmons
• Spatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimes
• Generalized Kirchhoff law
• Fluctuating surface-current formulation of radiative heat transfer: theory and applications
• Imaging non-local electron transport via local excess noise
• Spatial coherence in complex photonic and plasmonic systems
• Probing Quantum Correlation Functions Through Energy Absorption Interferometry
• Characterization of Power Absorption Response of Periodic 3D Structures to Partially Coherent Fields
• Characteristic Functions Describing the Power Absorption Response of Periodic Structures to Partially Coherent Fields