This research demonstrates advanced imaging techniques for the methyl (CH3) radical using a single-shot approach with a laser system.
By harnessing CH3 photo-fragmentation and CH detection, it reveals insights into flame diagnostics across various conditions, such as premixed laminar and turbulent flames, and a methane lifted jet diffusion flame. The proposed method offers the versatility to detect nascent CH and hydroxyl radicals, enabling joint imaging applications in combustion analysis.
Cercolens products were pivotal in this study, particularly the Cerco 100-mm f/2.8 UV objective lens and the Cerco 45-mm f/1.8 UV camera lens. These lenses facilitated higher efficiency and improved image quality in the ultraviolet spectrum necessary for methyl radical detection
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Carter, C. D., & Skiba, A. W. (2023). CH3 imaging via photo-fragmentation combined with CH planar laser-induced fluorescence employing C–X (0, 0) band excitation and detection. Combustion and Flame, 254, 112851.