You can actually see the diffraction pattern in the double slit experiment right now. Instead of using electrons, we will use light, and instead of a double slit, we will use a single slit.

After many electrons have passed through the slits, the marks on the screen will comprise a diffraction pattern – illustrating the wave-like behaviour of each electron. But if one were to cover up one ...

The resulting waves that come out the other side of an obstacle create a diffraction pattern to create more complex diffraction patterns. A diffraction grating is a surface with multiple interferences ...

[+] slit (P2), or both slits (P12) are open, the pattern you see is very different depending on whether one or two slits are available. R. Bach et al., New Journal of Physics, Volume 15, March 2013 ...

The second unusual part of the double-slit experiment is that the electrons stop creating an interference pattern when scientists set up a detector near one of the slits to determine which slit(s ...

However, when physicists try to put a detector by the slits to see exactly which slit the particles went through, the pattern changes so there is no diffraction pattern.

This result held true for particles across the width of the diffraction pattern and for the full range (2.5–5 pm) of De Broglie wavelengths tested. Angelo Bassi of the University of Trieste in Italy ...

The new experiment is a twist on a 220-year-old demonstration, in which light shines through two slits in a screen to create a unique diffraction pattern across space, where the peaks and troughs ...

So what about using diffraction with infrared light? Yes, that would be cool, but we can't really see infrared (well, there is a body hack for this ). Even though we can't see infrared, most video ...