Figure 2| Dynamics, energy deposition and time-resolved spectra of fs-LI. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 2| Dynamics, energy deposition and time-resolved spectra of fs-LI.

Caption

a Side-view images for the dynamic evolution of the flame kernel ignited by the fs laser filament. b Plasma energy couplings in the premixed methane-air flow measured with laser repetition rates of 50 (blue triangle), 100 (green circle) and 200 Hz (red square). c Filament-induced OES spectra of the lean-fuel mixture obtained with different temporal delays of the ICCD; Inset: the signal intensities of OH (red rectangle) and CH (blue dot) radicals measured as a function of the gate delay.

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by Hongwei Zang, Helong Li, Wei Zhang, Yao Fu, Shanming Chen, Huailiang Xu, and Ruxin Li

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