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Title: Time-resolved broadband cavity-enhanced absorption spectroscopy for chemical kinetics.

Abstract

Experimental measurements of elementary reaction rate coefficients and product branching ratios are essential to our understanding of many fundamentally important processes in Combustion Chemistry. However, such measurements are often impossible because of a lack of adequate detection techniques. Some of the largest gaps in our knowledge concern some of the most important radical species, because their short lifetimes and low steady-state concentrations make them particularly difficult to detect. To address this challenge, we propose a novel general detection method for gas-phase chemical kinetics: time-resolved broadband cavity-enhanced absorption spectroscopy (TR-BB-CEAS). This all-optical, non-intrusive, multiplexed method enables sensitive direct probing of transient reaction intermediates in a simple, inexpensive, and robust experimental package.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1095949
Report Number(s):
SAND2013-2664
463465
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Sheps, Leonid, and Chandler, David W. Time-resolved broadband cavity-enhanced absorption spectroscopy for chemical kinetics.. United States: N. p., 2013. Web. doi:10.2172/1095949.
Sheps, Leonid, & Chandler, David W. Time-resolved broadband cavity-enhanced absorption spectroscopy for chemical kinetics.. United States. doi:10.2172/1095949.
Sheps, Leonid, and Chandler, David W. Mon . "Time-resolved broadband cavity-enhanced absorption spectroscopy for chemical kinetics.". United States. doi:10.2172/1095949. https://www.osti.gov/servlets/purl/1095949.
@article{osti_1095949,
title = {Time-resolved broadband cavity-enhanced absorption spectroscopy for chemical kinetics.},
author = {Sheps, Leonid and Chandler, David W.},
abstractNote = {Experimental measurements of elementary reaction rate coefficients and product branching ratios are essential to our understanding of many fundamentally important processes in Combustion Chemistry. However, such measurements are often impossible because of a lack of adequate detection techniques. Some of the largest gaps in our knowledge concern some of the most important radical species, because their short lifetimes and low steady-state concentrations make them particularly difficult to detect. To address this challenge, we propose a novel general detection method for gas-phase chemical kinetics: time-resolved broadband cavity-enhanced absorption spectroscopy (TR-BB-CEAS). This all-optical, non-intrusive, multiplexed method enables sensitive direct probing of transient reaction intermediates in a simple, inexpensive, and robust experimental package.},
doi = {10.2172/1095949},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 01 00:00:00 EDT 2013},
month = {Mon Apr 01 00:00:00 EDT 2013}
}

Technical Report:

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