I get the impression this is a video-only thing because you need multiple vantage points of the scene. You can still extract a single frame in the end of course (like the article itself does), but you’ll need to shift around meaningful distances, like attack submarines do with Target Motion Analysis.

That’s 25 attoseconds, no?.. If so, that’s impressive.

The power record holder right now is the Măgurele laser in Romania, at 10 PW, but it lasts a thousand times longer, at 25 femtoseconds I believe. I can’t find clear info on pulse duration anywhere. They do intend to decrease pulse durations it seems.