A diffraction grating splits a beam of light up into multiple beams whose position is determined by both the wavelength of the light and the properties of the grating.

A preprint describing the experiment is available via arXiv and is yet to be peer-reviewed. [H/T: New Scientist] White light passing through a diffraction grating creates this pattern.

The Grating Challenge This page contains hints, solutions, and advanced challenges for our diffraction grating challenge. If you would like a grating (or a set for your class if you are a teacher), ...

Recently, physicists from The Massachusetts Institute of Technology conducted a new experiment with slits through which light was transmitted with incredible atomic precision. The results of their ...

Scientists have observed “bending” atoms using a crystal grating—an experiment once believed impossible at the high energies required. The authors of a new, non-peer reviewed study detail ...

Essentially, they form a diffraction grating, except photonic crystals only produce certain colors, or wavelengths, of light, while a diffraction grating will produce the entire spectrum, much ...

The average 3D printer can’t recreate the tiny-scaled patterns of a diffraction grating directly; a typical diffraction grating may have up to 1000 lines per mm.