Diffraction grating

Videos

In optics, a diffraction grating is a grating with a periodic structure of appropriate scale so as to diffract light, or another type of electromagnetic radiation, into several beams traveling in diff

$A very large reflecting diffraction grating$

A very large reflecting diffraction grating

$An incandescent light bulb viewed through a diffractive effects filter.$

An incandescent light bulb viewed through a diffractive effects filter.

$A blazed diffraction grating reflecting only the green portion of the spectrum from a room's fluorescent lighting$

A blazed diffraction grating reflecting only the green portion of the spectrum from a room's fluorescent lighting

$A helical fluorescent lamp photographed in a blazed reflection-diffraction grating, showing the various spectral lines produced by the lamp.$

A helical fluorescent lamp photographed in a blazed reflection-diffraction grating, showing the various spectral lines produced by the lamp.

Diffraction

Videos

Diffraction is the deviation of waves from straight-line propagation due to an obstacle or through an aperture, without any change in their energy. Diffraction is the same physical effect as interfere

$The diffraction pattern (Airy disc) of a red laser beam projected onto a plate after passing through a small circular aperture in another plate$

The diffraction pattern (Airy disc) of a red laser beam projected onto a plate after passing through a small circular aperture in another plate

$Single-slit diffraction in a circular ripple tank$

Single-slit diffraction in a circular ripple tank

$Diffraction pattern from a square aperture$

Diffraction pattern from a square aperture

$Optical diffraction pattern$

Optical diffraction pattern