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An all-optical ultrafast imaging system developed by scientists at Shenzhen University has reached 15 trillion frames per second. The system is useful for visualizing ultrafast phenomena such as femtosecond laser ablation, ignition for nuclear fusion energy systems, shockwave interactions in living cells, and certain chemical reactions.
Sequential imaging of microscopic ultrafast dynamic processes requires high frame rates and high spatial and temporal resolutions, which in current imaging systems are in trade-off with one another. As the researchers’ technique is all-optical, it is free from bottlenecks arising from scanning with mechanical and electronic components.
Four sequential images of a rotating optical field…