Hydrogen Atom Imaging in High-Pressure Flames Using Femtosecond Two-Photon LIF

Pradeep Parajuli; Yejun Wang; Matthew Hay; Waruna D. Kulatilaka

doi:10.1364/LACSEA.2022.LTh3E.4

Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES)
Technical Digest Series (Optica Publishing Group, 2022),
paper LTh3E.4
•https://doi.org/10.1364/LACSEA.2022.LTh3E.4

Hydrogen Atom Imaging in High-Pressure Flames Using Femtosecond Two-Photon LIF

Pradeep Parajuli, Yejun Wang, Matthew Hay, and Waruna D. Kulatilaka

Laser Applications to Chemical, Security and Environmental Analysis 2022

Vancouver, British Columbia Canada
11–15 July 2022
ISBN: 978-1-957171-10-4

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Combustion Imaging and Thermometry (LTh3E)

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P. Parajuli, Y. Wang, M. Hay, and W. D. Kulatilaka, "Hydrogen Atom Imaging in High-Pressure Flames Using Femtosecond Two-Photon LIF," in Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES), Technical Digest Series (Optica Publishing Group, 2022), paper LTh3E.4.

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Abstract

We demonstrate hydrogen (H) atom imaging in high-pressure (1–10 bar) methane-air flames using a home-built, high-conversion-efficiency, direct-frequency-quadrupled fs laser system. The effects of laser energy, excitation wavelength, equivalence ratio, and pressure are discussed.

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