Control light with heat and magnets (Magneto-optical Kerr effect)

From a channel Lumen includes in full: Ben Krasnow runs real lab experiments on camera (electron beams, thin-film deposition, optics, exotic materials) and explains the physics and method in detail; a long-running favourite of engineers for genuine, reproducible science.

A 10-minute video from Applied Science's catalogue; the title names its topic.

Video by Applied Science, played through YouTube's embedded player.