Self Broadening in the NU(1) band of NH3

Anno: 1993

Autori: Markov V.N., Pine A.S., Buffa G., Tarrini O.

Affiliazione autori: Molecular Physics Division, National Institute of Standards and Technology, Githersburg MD, USA;
Dipartimento di fisica dell’università di Pisa

Abstract: Self-broadening coefficients, pressure shifts and integrated intensities have been measured for Q- and R-branch transitions in the nu1 fundamental band of ammonia using a difference-frequency laser spectrometer. A strong, systematic J and K dependence of the broadening coefficients, reminiscent of the ground-state inversion transitions, is observed and compared with semiclassical line broadening calculations. Dicke narrowing is evident at intermediate pressures for the sharpest lines, primarily the R(J, 0) transitions. Incipient line mixing is apparent in the Q branch at pressures above approximately 0.1 bar.

Giornale/Rivista: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER

Volume: 50      Da Pagina: 167  A: 178

Parole chiavi: pressure broadening; ammonia;
DOI: 10.1016/0022-4073(93)90115-X

Citazioni: 49
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
Link per visualizzare la scheda su IsiWeb: Clicca qui
Link per visualizzare la citazioni su IsiWeb: Clicca qui