Time-resolved spectroscopy of plasmas initiated on single, levitated aerosol droplets.
Plasma spectra resulting from the irradiation of single, optically levitated glycerine droplets by an intense pulse from a Nd:YAG laser are presented. The temporal development of the plasma is studied by observing emission lines of neutral and once-ionized carbon and of once-ionized nitrogen. Stark shifts of the neutral-carbon lines are used to compute the plasma electron density. The droplet data are compared with similar data for laser-induced breakdown on a graphite surface.
Biswas
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A
Latifi
H
H
Shah
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Radziemski
L J
LJ
Armstrong
R L
RL