Risultati scientifici

Combined interferometric and absorption-spectroscopic technique for determining molecular line strengths: Applications to CO2

Anno: 2003

Autori: Castrillo A., Gagliardi G., Casa G., Gianfrani L.

Affiliazione autori: Dipartimento di Scienze Ambientali, Seconda Università di Napoli, INFM–Gruppo Coordinato Napoli 2, Via Vivaldi 43, Caserta, I-81100, Italy

Abstract: A diode-laser-based technique has been developed for absolute line strength measurements with high precision and accuracy, combining a spectroscopic determination of the integrated absorbance with an optical measurement of the absorption path length by means of a Michelson interferometer. This method has been applied to several (CO2)-C-12-O-16 vibrorotational transitions belonging to the nu(1)+2nu(2)(0)+nu(3) combination band, in the spectral region around 2 mum. The 1sigma overall accuracy in line strength determination ranges between 0.4% and 0.7%, while the experimental reproducibility is estimated to be around 0.1%. To our knowledge, these levels are the highest ever reached before. The pressure-broadening coefficients for the same transitions are also reported.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 67 (6)      Da Pagina: 062503  A: 062503

Parole chiavi: molecular absorption linestrength; laser spectroscopy; interferometer
DOI: 10.1103/PhysRevA.67.062503

Citazioni: 19
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2022-01-23
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

gdpr-image
This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more