On the extension of the Rydberg-Ritz principle to the collisional relaxation of molecular and atomic lines
Anno: 1997
Autori: Belli S., Buffa G., Tarrini O.
Affiliazione autori: 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.
Giornale/Rivista: CHEMICAL PHYSICS LETTERS
Volume: 271 Da Pagina: 349 A: 354
Parole chiavi: pressure broadening; presssure shift; spectroscopy; collisions; DOI: 10.1016/S0009-2614(97)00489-2Citazioni: 4dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui