Massive objects in space act as gravitational lenses, bending and focusing light. Scientists have now created a photonic analogue of a gravitational lens on a chip, and have shown that it is strong enough to force light into orbits.
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Leonhardt, U. Gravitational lens on a chip. Nature Photon 7, 856–858 (2013). https://doi.org/10.1038/nphoton.2013.283
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DOI: https://doi.org/10.1038/nphoton.2013.283
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