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Title: Two-photon digital imaging of CO in combustion flows using planar laser-induced fluorescence

Abstract

Two-dimensional imaging of CO distributions in combustion gases is demonstrated using planar laser-induced fluorescence. The illumination technique is based on the combination of a nonlinear absorption scheme, in which two photons at 230.1 nm excite several rotational transitions of the B/sup 1/..sigma../sup +/reverse arrowX/sup 1/..sigma../sup +/ system, and the use of an ultraviolet multipass cell for producing the laser sheet. The subsequent visible fluorescence (B/sup 1/..sigma../sup +/..-->..A/sup 1/..pi..) is imaged onto an intensified two-dimensional photodiode array. Experimental results are presented for carbon monoxide-air and methane-air flames.

Authors:
; ;
Publication Date:
Research Org.:
High Temperature Gasdynamics Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, California 94305
OSTI Identifier:
7073208
Resource Type:
Journal Article
Journal Name:
Opt. Lett.; (United States)
Additional Journal Information:
Journal Volume: 11:12
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AIR; COMBUSTION PROPERTIES; FLUORESCENCE SPECTROSCOPY; LASER SPECTROSCOPY; CARBON MONOXIDE; FLUORESCENCE; METHANE; COMBUSTION; COMBUSTION KINETICS; ENERGY-LEVEL TRANSITIONS; FLAMES; GAS FLOW; IMAGES; NONLINEAR OPTICS; ROTATIONAL STATES; ALKANES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTION KINETICS; CHEMICAL REACTIONS; EMISSION SPECTROSCOPY; ENERGY LEVELS; EXCITED STATES; FLUID FLOW; FLUIDS; GASES; HYDROCARBONS; KINETICS; LUMINESCENCE; OPTICS; ORGANIC COMPOUNDS; OXIDATION; OXIDES; OXYGEN COMPOUNDS; REACTION KINETICS; SPECTROSCOPY; THERMOCHEMICAL PROCESSES; 400800* - Combustion, Pyrolysis, & High-Temperature Chemistry; 400102 - Chemical & Spectral Procedures

Citation Formats

Haumann, J, Seitzman, J M, and Hanson, R K. Two-photon digital imaging of CO in combustion flows using planar laser-induced fluorescence. United States: N. p., 1986. Web. doi:10.1364/OL.11.000776.
Haumann, J, Seitzman, J M, & Hanson, R K. Two-photon digital imaging of CO in combustion flows using planar laser-induced fluorescence. United States. https://doi.org/10.1364/OL.11.000776
Haumann, J, Seitzman, J M, and Hanson, R K. 1986. "Two-photon digital imaging of CO in combustion flows using planar laser-induced fluorescence". United States. https://doi.org/10.1364/OL.11.000776.
@article{osti_7073208,
title = {Two-photon digital imaging of CO in combustion flows using planar laser-induced fluorescence},
author = {Haumann, J and Seitzman, J M and Hanson, R K},
abstractNote = {Two-dimensional imaging of CO distributions in combustion gases is demonstrated using planar laser-induced fluorescence. The illumination technique is based on the combination of a nonlinear absorption scheme, in which two photons at 230.1 nm excite several rotational transitions of the B/sup 1/..sigma../sup +/reverse arrowX/sup 1/..sigma../sup +/ system, and the use of an ultraviolet multipass cell for producing the laser sheet. The subsequent visible fluorescence (B/sup 1/..sigma../sup +/..-->..A/sup 1/..pi..) is imaged onto an intensified two-dimensional photodiode array. Experimental results are presented for carbon monoxide-air and methane-air flames.},
doi = {10.1364/OL.11.000776},
url = {https://www.osti.gov/biblio/7073208}, journal = {Opt. Lett.; (United States)},
number = ,
volume = 11:12,
place = {United States},
year = {Mon Dec 01 00:00:00 EST 1986},
month = {Mon Dec 01 00:00:00 EST 1986}
}