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Light Waves Visualized using Photon Sieves.

Huygens Optics · explainer · Watch on YouTube

Everyday physics & science demosFundamental physics

What it is

Huygens Optics shows how DIY photon sieves shape a laser's wave front, explaining how they differ from zone plates and how aperture count affects the focal point, with time-resolved visualizations of the diffraction.

Why Hacker News recommends it

HN points to it for a clear explanation of photon sieves versus Fresnel lenses and for showing what interference patterns actually look like.

  • 3 people recommended it
  • 3 different months
  • 0 strong recommendations
  • first 2020, last 2022

What HN commenters said

  1. “Here is a video explaining the difference between a Fresnel lens and a photon sieve”

    Explains difference between Fresnel lens and photon sieve

    Learning2-2, 2020-09 · Recommendation · in “Engineers produce a fisheye lens that’s completely flat”

  2. “The Huygens Optics channel has a fascinating video abut a photon sieve created using a home-made litography setup”

    Photon sieve made with home-made lithography setup

    avian, 2022-04 · Recommendation · in “Photon Sieve”

  3. “It shows how the interference patterns actually look.”

    Shows what interference patterns actually look like

    eterevsky, 2022-05 · Recommendation · in “Chaos: The real problem with quantum mechanics”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: photon sieve, diffraction, fresnel zone plate, optics, lithography, wave front

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