Application of a mode-locked fiber laser for highly time resolved broadband absorption spectroscopy and laser-assisted breakdown on micro-plasmas
Journal of Physics D: Applied Physics
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Please cite this item using this persistent URLhttp://hdl.handle.net/11693/21431
Absorption spectroscopy is known to be a powerful tool to gain spatially and temporally resolved information on excited and reactive species in a plasma discharge. Furthermore, the interaction of the discharge with short intense laser pulses can trigger the ignition and the transition into other transient states of the plasma. In this context laser-assisted pump-probe experiments involving simultaneously generated supercontinuum radiation yield highly temporally resolved and spatially well-defined information on the transient phenomena. In this paper we demonstrate the possibility for pumpprobe experiments by initiating breakdown on a picosecond time scale (pump) with a high-power beam and measuring the broadband absorption with the simultaneously provided supercontinuum (probe). Since both pulses are generated from the same mode-locked master oscillator, they have a strong level of synchronization. © 2012 IOP Publishing Ltd.
- Research Paper 7144
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