典型文献
Spectral coherence of white LEDs
文献摘要：
We address space-frequency domain coherence properties of broadband light-emitting diodes(white LEDs)and fields radiated by them.Inverse-source techniques are employed to determine the spectral degree of spatial co-herence of an effective planar source representing a real LED,and coherent elementary fields associated with it.By fitting with experimental measurements,we formulate simple analytical coherence models that can be used as a basis for theoretical and experimental studies of the coherence of polychromatic stationary light in free space and in various optical systems.In particular,we find that radiation from white LEDs follows closely Wolf's scaling law for spectral invariance[Phys.Rev.Lett.56,1370(1986)]in the blue and the phosphor-generated parts of the spectrum separately,but not across the entire white-light spectrum.
文献关键词：
中图分类号：
作者姓名：
ATRI HALDER;JARI TURUNEN
作者机构：
Institute of Photonics,University of Eastern Finland,FI-80101 Joensuu,Finland
文献出处：
引用格式：
[1]ATRI HALDER;JARI TURUNEN-.Spectral coherence of white LEDs)[J].光子学研究（英文）,2022(11):2460-2470
A类：
herence
B类：
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AB值：
0.695038
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