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arXiv · 1807.02111

Single-shot Ultrafast Imaging via Spatiotemporal Division of Femtosecond Laser Pulses

Sarang Yeola·Donghoon Kuk·Ki-Yong Kim
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Abstract

We have developed a single-shot imaging technique that can capture ultrafast events occurring on femtosecond to picosecond time scales. The technique is based on an optical pump-probe method, in which multiple time-delayed femtosecond pulses simultaneously probe a pump-excited sample. Here we use two sets of 2-by-2 mirror arrays for spatial/temporal division and routing of multiple probe pulses. This single-shot scheme is successfully applied to capture femtosecond ionization fronts propagating at the speed of light in air, as well as laser-induced ablation of solid targets.

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Sarang Yeola, Donghoon Kuk, Ki-Yong Kim. 2018-07-05. Single-shot Ultrafast Imaging via Spatiotemporal Division of Femtosecond Laser Pulses. https://doi.org/10.1364/josab.35.002822

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