Researchers from the University of Birmingham have produced a model showing the shape of a single photon. Simply put, what you’re looking at is an exact simulation of a photon as it is emitted by an atom sitting on the surface of a nanoparticle.
Since the shape of the photon is deeply affected by the nanoparticle, this makes it thousands of times more likely that the photon is emitted, and even reabsorbed by the atom multiple times. The geometry and optical properties of the environment both have profound consequences for how photons are emitted, including defining their shape, color, as well as how likely it is to exist.
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Our calculations enabled us to convert a seemingly insolvable problem into something that can be computed. And, almost as a bi-product of the model, we were able to produce this image of a photon, something that hasn’t been seen before in physics,” said Dr Benjamin Yuen, School of Physics & Astronomy at the University of Birmingham.
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