I'm talking about this kind of technique (at the beginning of the video):
How would I notate this kind of technique on paper?
It's called "ricochet bowing". The video uses cello, but the principle is the same.
The notation is just a text instruction, "ricochet", "jeté", or "staccato volante". The exact difference, if any, between the three techniques can a good topic for endless argument that doesn't lead anywhere very useful!
The notes are often written with staccato dots plus a slur - though as the video says, the choice of up and down bows is more about "what feels comfortable" to an individual player than about what sound is produced.