Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Accurate optical number density measurement of ¹²CO₂ and ¹³CO₂ with direct frequency comb spectroscopy|
|Other Titles:||Accurate optical number density measurement of 12CO2 and 13CO2 with direct frequency comb spectroscopy|
|Citation:||Physical Review Applied, 2019; 12(3):034045-1-034045-6|
|Publisher:||American Physical Society|
|Sarah K. Scholten, Christopher Perrella, James D. Anstie, Richard T. White, and Andre N. Luiten|
|Abstract:||We report on the use of direct frequency comb spectroscopy to accurately measure the concentrations of ¹²C¹⁶O₂ and ¹³C¹⁶O₂ isotopologs in a gas sample. We demonstrate an accuracy of 0.5% and 12% for concentration measurements of ¹²C¹⁶O₂ and ¹³C¹⁶O₂, respectively, with the measured isotopic ratio in excellent agreement with that expected from their natural abundances. The precision of the concentration measurements is also high, at 0.03% and 1.24% for ¹²C¹⁶O₂ and ¹³C¹⁶O₂, respectively. The measurement technique is verified to be highly linear for concentrations ranging over 3 orders of magnitude. Direct frequency comb spectroscopy can be applied to numerous molecular species, and is therefore a promising technique for measurements in environmental monitoring and biomedical sciences.|
|Rights:||© 2019 American Physical Society|
|Appears in Collections:||Physics publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.