Theory of saturated-absorption cavity ring-down: radiocarbon dioxide detection, a case study
Authors: Giusfredi G., Galli I., Mazzotti D., Cancio P., De Natale P.
Autors Affiliation: CNR, Istituto Nazionale di Ottica, I-50019 Sesto Fiorentino, FI, Italy; European Lab Nonlinear Spect LENS, I-50019 Sesto Fiorentino, FI, Italy
Abstract: The theoretical bases of saturated-absorption cavity ring-down (SCAR) spectroscopy are treated and described in detail in different transition broadening regimes. All the approximations that are introduced to achieve a model as simple and accurate as possible are discussed. In the Voigt broadening regime, a calibration factor that relates the measured spectral areas in the saturated and linear absorption regimes is retrieved. A relevant application of this technique to the measurement of radiocarbon dioxide concentration at both enriched and natural abundance (similar to 10(-12)) is presented. The population relaxation rate of one ro-vibrational state of the nu(3) band is measured for this highly diluted CO2 isotopologue. (C) 2015 Optical Society of America
Journal/Review: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B: OPTICAL PHYSICS
Volume: 32 (10) Pages from: 2223 to: 2237
More Information: ESFRI Roadmap, Extreme Light Infrastructure (ELI) Project; EU 7th Framework Program, Laserlab-Europe (284464); Italian Ministry of Foreign Affairs; Programma Nazionale di Ricerche in Antartide (PNRA) (2013/AC4.01).DOI: 10.1364/JOSAB.32.002223Citations: 15data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2019-10-13References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here