Effect of nonlinearity on surface plasmon polaritons in graphene in the Terahertz region

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2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Page: 1-1

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Matthew Sanderson; Yee Sin Ang; Chao Zhang
Institute of Electrical and Electronics Engineers (IEEE)
Physics and Astronomy; Computer Science; nonlinearity; plasmon; effect; polaritons; surface; graphene; terahertz; region; Engineering; Science and Technology Studies
conference paper description
The effect of a strong electric field (≥ 4kV/cm) on the properties of surface plasmon polaritons (SPP's) is investigated. It is found that when a strong enough field is applied, the TM SPP dispersion can move up into the light cone. It is further found that when considering the problem of exciting SPP's using a prisim (ie. excitation from evanescent waves), optical bistability is possible as a sufficiently high field.