Spectroscopic properties of a perfluorinated ketone for PLIF applications |
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| Authors: | Arnab Roy Jonas P R Gustavsson Corin Segal |
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| Institution: | (1) Combustion and Propulsion Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA;(2) Florida Center for Advanced Aero-Propulsion, 2525 Pottsdamer St, Room A229, Tallahassee, FL 32310, USA |
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| Abstract: | This work identifies the fluorescence characteristics of a perfluorinated ketone, 2-trifluoromethyl-1,1,1,2,4,4,5,5,5-nonafluoro-3-pentanone,
further referred to as fluoroketone. This compound is suitable for use with the third harmonic of an Nd:YAG laser for quantitative
concentration measurements, as it exhibits strong emission even for relatively low excitation and has a near-linear response
of fluorescence intensity with concentration. This makes it suitable for a broad range of fluorescence applications. The absorption
cross-section of 3.81 × 10−19 cm2 was found to be constant for a temperature range of 293–441 K and a pressure range of 1–18 atm. A calibration line has been
generated that relates the concentration of gaseous and liquid fluoroketone with its absorption coefficient. |
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