Stark Effect in Rapidly Varying Fields

S. H. Autler and C. H. Townes
Phys. Rev. 100, 703 – Published 15 October 1955
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Abstract

A method is developed for calculating the effects of a strong oscillating field on two states of a quantum-mechanical system which are connected by a matrix element of the field. Explicit approximate solutions are obtained for a variety of special cases, and the results of numerical computations are given for others. The effect of an rf field on the J=21 l-type doublet microwave absorption lines of OCS has been studied in particular both experimentally and theoretically. Each line was observed to split into two components when the frequency of the rf field was near 12.78 Mc or 38.28 Mc, which are the frequencies separating the J=1 and J=2 pairs of levels, respectively. By measuring the rf frequency, ν0, at which the microwave lines are split into two equally intense components, one may determine the separation between the energy levels. The measured value of ν0 depends upon the intensity of the rf field and the form of this dependence has been calculated and found to be in good agreement with the experimental results.

  • Received 31 May 1955

DOI:https://doi.org/10.1103/PhysRev.100.703

©1955 American Physical Society

Authors & Affiliations

S. H. Autler* and C. H. Townes

  • Columbia University, New York, New York

  • *Present address: Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts.

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Issue

Vol. 100, Iss. 2 — October 1955

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