“For more than 70 years, the Tellegen effect has been something of an 'optics unicorn': a phenomenon well described in theory but practically impossible to observe because it is usually vanishingly weak in natural materials. Now, researchers from the University of Gothenburg, Aalto University in Finland, and Stanford University report what they describe as the first experimental detection of the Tellegen effect for visible light.” (University of Gothenburg, Scientists Finally Spot the Elusive Tellegen Effect)
Reseachers at the University of Gothenburg and Aalto University spotted the Tellegen effect in optical metasurfaces. First time in history. Researchers formed an elusive Telleren effect in the optical area. Reseachers rejected natural materials. They developed the synthetic metamaterials. And. That opened new ways to create the Tellegen effect in material.
And before anybody can benefit from that effect, the systems and metamaterials must turn more advanced. The Tellegen effect is a very weak thing. But if that thing is possible. And the radio waves. They can turn into optical waves. And backward. That can open new paths for network and stealth technologies. Another thing is that. The question mark is: could that effect transform all optical wavelengths?
The Tellegen effect means a situation. That magnetic field interacts with metamaterials. Reseachers used metamaterial. That involved nanotubes, and finally, they used a material. That was introduced above this text. The material consists of pyramid-shaped structures. The reason why this material makes the Telleren effect possible is that. Pyramids transfer wave movement out from the surface. When a wave movement travels at the sides of the pyramid. The impact at the top of the pyramid.
It can turn electromagnetic fields or waves into visible light. If the Tellegen effect is complete, and material is covered by a light-absorbing layer, the Tellegen effect. It can make a revolution in material research. But this thing. Can make a layer invisible. In some models, the Tellegen effect. It could transform visible light reflection into UV or IR reflection. UV reflection makes an object “colder”. And it is not visible in IR sensors.
The idea is that the identical wave movement that travels in the same spot from the four sides of the nano-pyramid can also form the quantum dot. The quantum version of the electric arc. In cases where there is a channel in the pyramid. And there is an identical quantum electric arc or virtual particle, which can also pull all energy into that low-energy part of this quantum dot pair.
https://aaltodoc.aalto.fi/items/e21ad997-a72a-494e-a571-9acdb095c12f
https://www.gu.se/en/news/scientists-finally-spot-the-elusive-tellegen-effect
https://link.springer.com/article/10.1186/s43593-026-00123-2
https://link.springer.com/article/10.1038/s41467-024-45225-y?fromPaywallRec=false
