Some basic properties of stimulated and spontaneous emission: A semiclassical approach
作者:
A. V. Durrant,
期刊:
American Journal of Physics
(AIP Available online 1976)
卷期:
Volume 44,
issue 7
页码: 630-635
ISSN:0002-9505
年代: 1976
DOI:10.1119/1.10322
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
The coherence and directional properties of stimulated and spontaneous emission can be understood without a knowledge of quantum electrodynamics. This paper presents a semiclassical description of the interaction between a free atom and a weak optical field under conditions of either a stimulated emission or a stimulated absorption resonance. It is shown that, under certain conditions, the stimulated or spontaneous radiation fields emitted from a sample of atoms will propagate in the same direction as the incident beam, will be coherent with the incident beam, and will have the correct phase to provide amplification or attenuation.
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