Simultaneous Effect of Doppler and Foreign Gas Broadening on Spectral Lines

Louis Galatry
Phys. Rev. 122, 1218 – Published 15 May 1961
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Abstract

By using the classical Fourier integral theory, an expression is given for the shape of a spectral line, broadened by phase changes due to collisions and by the actual changes in velocity of the emitting particles resulting from collisions. The result is not a simple Voigt-type folding of an exponential into a dispersion distribution; it exhibits the contraction noted by Dicke and leads to the usual formulas when the time interval between path-deflecting or phase-disturbing collisions becomes very great.

  • Received 29 December 1960

DOI:https://doi.org/10.1103/PhysRev.122.1218

©1961 American Physical Society

Authors & Affiliations

Louis Galatry*

  • Sloane Physics Laboratory, Yale University, New Haven, Connecticut

  • *Present address: Centre National de la Recherche Scientifique, Bellevue, Seine et Oise, France.

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Issue

Vol. 122, Iss. 4 — May 1961

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