Back to Search
Start Over
Femtosecond, two-photon, laser-induced fluorescence (TP-LIF) measurement of CO in high-pressure flames
- Source :
- Applied optics. 57(20)
- Publication Year :
- 2018
-
Abstract
- Quantitative, kiloherz-rate measurement of carbon monoxide mole fractions by femtosecond two-photon, laser-induced fluorescence (TP-LIF) was demonstrated in high-pressure, luminous flames over a range of fuel-air ratios. Femtosecond excitation at 230.1 nm was used to pump CO two-photon rovibrational X1Σ+→B1Σ+ transitions in the Hopfield–Birge system and avoid photolytic interferences with excitation irradiance ∼1.7×1010 W/cm2. The effects of excitation wavelength, detection scheme, and potential sources of de-excitation were also assessed to optimize the signal-to-background and signal-to-noise ratios and achieve excellent agreement with theoretically predicted CO mole fractions at low and high pressure.
- Subjects :
- Materials science
business.industry
Analytical chemistry
02 engineering and technology
Rotational–vibrational spectroscopy
021001 nanoscience & nanotechnology
Mole fraction
01 natural sciences
Fluorescence
Atomic and Molecular Physics, and Optics
010309 optics
symbols.namesake
Optics
Two-photon excitation microscopy
0103 physical sciences
Femtosecond
symbols
Electrical and Electronic Engineering
0210 nano-technology
business
Laser-induced fluorescence
Engineering (miscellaneous)
Raman scattering
Excitation
Subjects
Details
- ISSN :
- 15394522
- Volume :
- 57
- Issue :
- 20
- Database :
- OpenAIRE
- Journal :
- Applied optics
- Accession number :
- edsair.doi.dedup.....a79bfc61827809e13a0f0a24eb4e4a35