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Updated: Jul 6, 2026
Measuring Dissolved Methane in Aquatic Ecosystems Using An Optical Spectroscopy Gas Analyzer
Published on: July 26, 2024
Quantitative two-dimensional instantaneous Raman concentration measurements in a laminar methane jet
D C Kyritsis1, P G Felton, Y Huang
1Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA. dimitrios.kyritsis@yale.edu
Abstract:
We have achieved quantitative two-dimensional Raman measurements of the concentration of methane in a laminar methane jet into nitrogen without multipassing the incident laser sheet with a coaxial flash-lamp-pumped dye laser. The measurements are compared with the results of direct numerical simulation for the particular flow field. We conclude that the accuracy of the technique is determined by limitations in the dynamic range and in the spatial resolution of the data acquired with an intensified camera.
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