辐射
热辐射
光子
辐射传输
二极管
吸收(声学)
发射光谱
电磁辐射
谱线
电子
热的
发光
原子物理学
半导体
电磁频谱
发光二极管
光电子学
黑体辐射
光辐射
物理
光学
热力学
核物理学
量子力学
出处
期刊:Journal of Physics C: Solid State Physics
[IOP Publishing]
日期:1982-06-30
卷期号:15 (18): 3967-3985
被引量:819
标识
DOI:10.1088/0022-3719/15/18/012
摘要
In a thermodynamic treatment electromagnetic radiation of any kind is described. The difference between thermal and non-thermal radiation is accounted for by introducing the chemical potential of photons. Instead of an effective temperature all kinds of radiation have the real temperature of the emitting material. As a result Planck's law for thermal radiation is extended to radiation of any kind. The concept of the chemical potential of radiation is discussed in detail in conjunction with light-emitting diodes, two-level systems, and lasers. It allows the calculation of absorption coefficients, of emission spectra of luminescent materials, and of radiative recombination lifetimes of electrons and holes in semiconductors. Theoretical emission spectra are compared with experimental data on GaAs light-emitting diodes and excellent agreement is obtained.
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