Formation of hydrocarbon species and carbon clusters through femtosecond laser ablation of cryogenic solidified methane

[摘要] Femtosecond laser ablation of cryogenically solidified CH4using a peak intensity 8×1014W/cm2at 800 nm has been studied using time of flight mass spectroscopy. Spectra show the presence of hydrocarbon species with molecular mass higher than the original target molecule.

[发布机构] Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo; ON; N2L 3G1, Canada^1;Energy Engineering and Physics, Amirkabir University of Technology, 424 Hafez Avenue, Tehran; 15875-4413, Iran^2;King Saud University, P. O. BOX 2454, Riyadh; 11451, Saudi Arabia^3

[关键词] Hydrocarbon species;Peak intensity;Target molecule;Time-of-flight mass spectroscopy