Abstract
A simple description of the interaction of electromagnetic irradiation with a quantum mechanical two-level system is performed in terms of the Einstein coefficients. A perturbation theory approach combined with the correspondence principle is used to obtain explicit expressions for the Einstein coefficients in electric dipole approximation, while avoiding application of the mathematical apparatus of quantization of the electromagnetic field. The results are applied to an introduction into the function principle of lasers.
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© 2016 Springer International Publishing Switzerland
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Stenzel, O. (2016). Einstein Coefficients . In: The Physics of Thin Film Optical Spectra. Springer Series in Surface Sciences, vol 44. Springer, Cham. https://doi.org/10.1007/978-3-319-21602-7_10
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DOI: https://doi.org/10.1007/978-3-319-21602-7_10
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Publisher Name: Springer, Cham
Print ISBN: 978-3-319-21601-0
Online ISBN: 978-3-319-21602-7
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