Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

This is quite hard to do safely. Generating air breakdown with IR femto requires a reasonable amount of fluence. They are probably using galvo scanners to shift the beam in xy, but to get the required intensity they have to also shift the focal plane. Given the distances they are projecting away from the car that NA is low meaning they would need a reasonable power. Probably why they are running it at 1kHz. Given its 2015 it is probably a ti-sapphire at 80fs, galvos and an optotune lens. The reason this isn't a thing is that it very hard to make this eye safe.


Consider applying for YC's Winter 2026 batch! Applications are open till Nov 10

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: