An object with periodic optical properties, e.g. grooves. Seperates light into its component wavelengths through the process of diffraction and interference. Think of the way a CD looks. This is ...

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 ...

A laser pointer shining on a diffraction grating or CD creates a series of diffraction spots depending on the spacing of the lines or pits in the grating or CD and the wavelength emitted by the laser.

One of the coolest things about physics is that the same basic concept can pop up in several seemingly unrelated things: say, a CD, the seed shrimp’s antennae, certain fossils in the Burgess shale, ...

Abstract: A major research field in physics education is focused on the study of constructing various types of teaching to help students comprehend physics conception and law. Computer simulations are ...

Modern Canadian plastic money (specifically the Frontiers series) has a diffractive element in it as a security feature. When a laser beam shines through the maple leaf on the bill, it produces a ...

In recent years, notions drawn from non-Hermitian physics and parity-time (PT) symmetry have raised considerable attention in photonics, enabling various novel structures with entirely new and ...