How White Light Diffracts when passing through different apertures.


How White Light Diffracts when passing through different apertures.

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About the Author: livescience

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  1. Diffraction happens when light passes through a very small aperture, and the patterns can take very surprising shapes, remarkably changing as the screen distance increases, especially in the Fresnel regime (near field patterns)

    Diffraction reveals the wave nature of light. Because each wavelength diffracts differently, it can be seen a rainbow of colors.

    Experimentally, you can see a diffraction pattern with White Light very easily: Just take a look at the reflection of a white lamp on an LCD screen, like the one you are probably watching this video with. You would see a diffraction pattern similar to the ones simulated here (rectangular diffraction grating), because of the small size of the pixels.

    I wrote an [Article](https://rafael-fuente.github.io/simulating-diffraction-patterns-with-the-angular-spectrum-method-and-python.html) in which I explained how I made these simulations and uploaded the source code so anyone can make their own.

    I also uploaded a [longer video](https://www.youtube.com/watch?v=Ft8CMEooBAE) with much more diffraction patterns!

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