Canadian Journal of Physics

Shift of holes in spectral lines due to time dependent perturbation

R. P. Srivastava

Published Dec 15, 1976• 1 citation

Abstract

The radiative decay of an atom with two excited states, one decaying and the other non-decaying, coupled by a time dependent perturbation, is investigated. The hole in the emission line is found to be shifted by an amount equal to the frequency of the time dependent perturbation. The practical importance of this effect is discussed. It is also noticed that the two methods of solution, one by making the rotating-wave approximation and the other by a perturbation expansion, yield different results, especially in the case when the two excited states are strongly coupled.

DOI: 10.1139/p76-290

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