Huygens Optics - [Updated] DIY Compton Scattering & X-ray Coincidence Measurements

Who'd have thought that background radiation shows strong 'non-local' second-order correlations?! See Inductiva - Chantal Roth on Fundamental Physical Models and The Action Lab - Branched Flow.

Here's the photon sieve video:

At 10:06 there's a kind of stop-motion effect achieved by changing the focal plane of the microscope, which then shows a different stage in the evolution of the image as the light moves away from the sieve.

Here's his photon bunching (Hanbury Brown and Twiss Effect) video:

This is a description of the process of making the sieve mask:


 At 7:53 there's an interesting thing that happens when the etching isn't complete.

And finally, here's a short course in photolithography:

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