On the extension of the Rydberg-Ritz principle to the collisional relaxation of molecular and atomic lines
Year: 1997
Authors: Belli S., Buffa G., Tarrini O.
Autors Affiliation: Dipartimento di Fisica dell’Università, Pisa
Abstract: As shown by recent experimental results, the frequently used additivity rules for the collisional broadening and shift are not exact since the Rydberg-Ritz combination principle cannot be extended to the relaxation-modified frequencies of atomic and molecular spectroscopic transitions. We present a treatment allowing the identification of additive and nonadditive parts of the relaxation. We conclude that even in cases when additivity approximately holds, this does not mean that the relaxation of the lines can be reduced to the relaxation of their initial and final states. (C) 1997 Published by Elsevier Science B.V.
Journal/Review: CHEMICAL PHYSICS LETTERS
Volume: 271 Pages from: 349 to: 354
KeyWords: pressure broadening; presssure shift; spectroscopy; collisions; DOI: 10.1016/S0009-2614(97)00489-2Citations: 5data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here