Noninvasive ultrafast imaging diagnostics in low-temperature plasmas
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abstract
We demonstrate utilization of femtosecond-duration laser pulses for two-photonabsorption LIF imaging of atomic species in nonequilibrium plasmas. Femtosecond excitation enables improved signal-to-noise ratio, suppression of photolytic interferences, kilohertz-rate imaging, and potential for collisional quenching-free measurements. 2014 OSA.