文献标题: Caustics due to a negative refractive index in circular graphene p-n junctions
文献类型: Article
作 者: CSERTI J, PALYI A, PETERFALVI C
作者关键词:
出版物名称: PHYSICAL REVIEW LETTERS
ISSN: 0031-9007
通讯作者地址: Eotvos Lorand Univ
被引频次: 73
DOI: 10.1103/PhysRevLett.99.246801
出版年: 2007
▎ 摘 要
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.
