Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3681799
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Funding
- National Natural Science Foundation of China [61071045, 10904012, 11174051]
- Ministry of Education of China [20110092110009]
- National Science Foundation of Jiangsu Province of China [BK2010421]
- Chinese Ministry of Education [109074]
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One of the most important advantages of graphene is the capability of dynamically tuning its conductivity by means of chemical doping or gate voltage. Based on this property, we propose a planar gradient index graphene-based lens transforming spherical waves of the transverse-magnetic (TM) surface plasmon polariton (SPP) wave to plane waves of the TM SPP wave with specific beam deflections. Using numerical simulations, it is confirmed that a single-atomic-layered graphene can be a platform for planar gradient-index lens, which can be applied to modulate the propagation of SPP waves. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3681799]
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