Storing light in a bottle is easier than one might think: Laser light can be coupled into an optical glass fiber in such a way that it does not travel along the fiber but rather spirals around it in a bulged, bottle-like section.
A transversal wave transfers light into a glass fiber, where it is stored in a bottle microresonator. Atoms close to the fiber couple to the light wave. TU Wien
In a glass fiber - with about half the diameter of a human hair - light is kept in place. It cannot escape, because the diameter of the fiber decreases on both sides. TU Wien
Dr. Florian Aigner | Technische Universität Wien
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