Light Waves Visualized using Photon Sieves.

The video shows how the optical wave front of a laser beam can be shaped by means of DIY photon sieves. It also shows how the quality and sharpness of the focal point in a diffraction pattern can be influenced by the number of diffractive apertures in the photon sieve surface.

Contents:
00:00 General intro
00:43 Photon sieves explained
04:21 Manufacturing of photon sieves
06:27 Photon sieve diffraction series
10:05 Time-resolved visualizations explained

Many thanks to Michal Miler for bringing the photon sieve to my attention.

Reference to the article on achromatic photon sieves by Chiongxi Zhou:https://www.researchgate.net/publication/24192201_Experimental_study_of_a_multiwavelength_photon_sieve_designed_by_random-area-divided_approach

More on the maskless wafer stepper project (link to playlist) : https://www.youtube.com/playlist?list=PLaLGh7vzNIRRuvbxZKHOUaeosIO4hpcsw
If you are interested in maskless wafer steppers or how to build one yourself, make sure you check out this great video by Sam Zeloof as well: https://www.youtube.com/watch?v=Nxz_ENnmgtI

The royalty free slo mo clip of the water wave at the end of the video could be displayed thanks to the video published on the Jim Quiter channel: https://www.youtube.com/watch?v=gS_tU6chC4A

Видео Light Waves Visualized using Photon Sieves. канала Huygens Optics