Reflective ruled diffraction grating is a kind of optical glass substrate composed of dense, equidistant parallel lines, and the surface is coated with aluminized, multi-layer dielectric or other ...

The importance of light-based technologies for our society was demonstrated once more in recent weeks. Thanks to the internet, millions of people can work remotely, enter virtual classrooms, or talk ...

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), please contact us at ...