Comment by kallistisoft
Comment by kallistisoft 10 months ago
> Unlike marking only on the surface of a 2D piece of paper or magnetic tape, this method of encoding uses two optical dimensions and three spatial co-ordinates to write throughout the material - hence the ā5Dā in its name.
Ummmmm.......
I guess wavelength and polarization of light? (I guess I have no idea how that's even possible to encode into a crystal, but it's two optical dimensions I suppose.)