期刊
APPLIED PHYSICS LETTERS
卷 112, 期 16, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5028349
关键词
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资金
- French Agence Nationale de la Recherche through the LabEx EMC3 program
- RIFT project [ANR-15-CE08-0018-01]
- European Union with the European Regional Development Fund
- Regional Council of Normandie
We report the tracking of single laser-induced shockwaves (SWs) using a real-time all-optical imaging setup based on amplified time-stretch dispersive Fourier transformation. SW propagation is encoded transversally on spatially dispersed ultrashort pulses at a frame rate of 80 MHz, and the technique allows us to record its evolution on mu s timescales. We were then able to monitor the slowing down of a single SW and its reflection on a plane surface and also to perform velocity statistics and to evidence SW-to-SW fluctuations. This feasibility study proves time-stretch imaging to be a complementary and particularly adapted method to study SW dynamics and interactions and fast non-repetitive events occurring in laser ablation. Published by AIP Publishing.
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