Quantitative determination of the O(P3) density via visible cavity-enhanced spectroscopy
作者： Manish Gupta , Thomas Owano , Douglas Baer , Anthony O’Keefe
DOI: 10.1063/1.2408655
关键词: Absorption (electromagnetic radiation) 、 Analytical chemistry 、 Inductively coupled plasma 、 Ultraviolet visible spectroscopy 、 Optical cavity 、 Atom 、 Ground state 、 Chemistry 、 Plasma diagnostics 、 Spectroscopy
摘要: A simple method has been developed to quantitatively measure the ground state oxygen atom, O(P3), density. The technique exploits cavity-enhanced spectroscopy probe relatively weak O(D1)←O(P13) transition near 636nm. O(P13) densities of approximately 3.4×1014at.∕cm3 were measured in an inductively coupled plasma produced within a high-finesse optical cavity, and minimum detectable atom density 1.3×1012at.∕cm3 was determined. absorption profile yielded translational temperature 453K. can be readily extended other atomic species.
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