Caustics due to a Negative Refractive Index in Circular GrapheneJunctions
- 11 December 2007
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 99 (24), 246801
- https://doi.org/10.1103/physrevlett.99.246801
Abstract
We show that the wave functions form caustics in circular graphene junctions which in the framework of geometrical optics can be interpreted with a negative refractive index.
Keywords
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