Caustics due to a Negative Refractive Index in Circular Graphenep−nJunctions

2007/06/27 by József Cserti, Jozsef Cserti, András Pályi +3 · 4 citations
Engineering · Materials Science · Mathematics · Physics and Astronomy · #Combinatorics #Graphene #Mathematics #Metamaterials and Metasurfaces Applications #Optics #Photonic Crystals and Applications #Physics #Plasmonic and Surface Plasmon Research #Quantum mechanics #Refractive index #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.99.246801

published as Phys. Rev. Lett. 99, 246801 (2007) · 4 pages, 5 figures

arxiv created 2007/06/27 · openalex publication_date 2007/12/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We show that the wave functions form caustics in circular graphene p-n junctions which in the framework of geometrical optics can be interpreted with a negative refractive index.

Citations

• Berry's Phase and Absence of Back Scattering in Carbon Nanotubes
• Transport Measurements Across a Tunable Potential Barrier in Graphene
• THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF ε AND μ
• The Focusing of Electron Flow and a Veselago Lens in Graphene p-n Junctions
• Focusing by planoconcave lens using negative refraction
• Metamaterials and Negative Refractive Index
• Graphene: New bridge between condensed matter physics and quantum electrodynamics

Cited by

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• Valley filtering in strain-induced α−T3 quantum dots
• Colloquium: Andreev reflection and Klein tunneling in graphene
• Berry phase jumps and giant nonreciprocity in Dirac quantum dots