3 ms·

When I was at uni we spent some time in the lab playing around with Magneto-optical film and polarized light, it was supposed to demo the Kerr Effect. I had fun

When I was at uni we spent some time in the lab playing around with Magneto-optical film and polarized light, it was supposed to demo the Kerr Effect. I had fun with an old floppy disk - you could bring a bar magnet close to the disk's film and watch the magnetic domains flip under the microscope. Would be pretty cool to print some patterns using this technology and view it the same way.

pdkl95 11y ago
> Kerr Effect Applied Science (which has many great videos) recently did that demonstration using an old magneto-optical removable disk. He was able to get a very nice example of the effect that is visible with the naked eye. https://www.youtube.com/watch?v=UTquUbvzJII https://www.youtube.com/watch?v=UTquUbvzJII If you like that video, the previous video on the Faraday effect is really cool; I had no idea a solenoid rotates light polarization. https://www.youtube.com/watch?v=XhU-nNiAgtI https://www.youtube.com/watch?v=XhU-nNiAgtI