/technologies/sensor-technology/b/blog/posts/scientists-split-a-photon-demonstrating-it-still-has-angular-momentumFor the first time, scientists split a single photon (green) into two photons (red) and conserved angular momentum. (Image Credit: Robert Fickler/ Tampere University ) Scientists at Tampere University split a single photon into two , demonstrating thaen-USTelligent Community 12https://community.element14.com/technologies/sensor-technology/b/blog/posts/scientists-split-a-photon-demonstrating-it-still-has-angular-momentumThu, 28 Aug 2025 20:37:33 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a3757b33-2c0d-44c8-b290-a838af0af7b4DAB0<p>I do not believe that they have split a photon.</p> <p>What they have done is have a photon interact with a crystal matrix that emitted different frequency photons after absorbing the initial photon stream. Something that I was doing nearly fifty years ago to create new wavelengths from a laser pulse source. They can call it anything they like, but this is not new science, just a rebranding of a known capability.</p> <p>Angular momentum is an inherent part of every photon as they have both rotational and vibration components.</p><img src="https://community.element14.com/aggbug?PostID=29167&AppID=17&AppType=Weblog&ContentType=0" width="1" height="1">