The influence of the optical Stark effect on chiral tunneling in graphene

Details The influence of the optical Stark effect on chiral tunneling in graphene The influence of the optical Stark effect on chiral tunneling in graphene

2010-07-20

arxiv.org/abs/1007.3430v3

EPL 95 24003 (2011)

Physics

Condensed Matter

Other Condensed Matter

4 pages,3 figures

Scientific paper

10.1209/0295-5075/95/24003

The influences of intense coherent laser fields on the transport properties of a single layer graphene are investigated by using the finite-difference time-domain method. Under an intense laser field, the valence band and conduction band states mix via the optical Stark effect. The chiral symmetry of Dirac electrons is broken and the perfect chiral tunneling is strongly suppressed.

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