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Title:MEASURING SPATIAL TEMPERATURE NONUNIFORMITY USING SINGLE-BEAM DUAL-COMB ABSORPTION SPECTROSCOPY
Author(s):Malarich, Nathan A
Contributor(s):Rieker, Gregory B
Subject(s):Instrument/Technique Demonstration
Abstract:Absorption spectroscopy typically recovers the average thermodynamic properties along a laser path. However, broadband laser sources, including the dual frequency comb spectrometer, measure many absorption features which provide different temperature information about the path nonuniformity. We have developed a two-step approach to extract a nonuniform temperature distribution from a broadband absorption spectrum spanning hundreds of absorption features. We demonstrate how this approach resolves the path nonuniformity in a tube furnace as predicted by natural convection theory.
Issue Date:22-Jun-20
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/107694
Date Available in IDEALS:2020-06-26


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