Article ID Journal Published Year Pages File Type
1866675 Physics Letters A 2016 4 Pages PDF
Abstract

•Established dynamics of ultra-short pulses in germanene.•Studied balance between dispersive and nonlinear effects in germanene.•Spin–orbit interaction effect onto pulse propagation.

In this Letter, we study the propagation characteristics of both two-dimensional and three-dimensional extremely short optical pulses in germanene. A distinguishing feature of germanene—in comparison with other graphene-like structures—is the presence of a significant spin–orbit interaction. The account of this interaction has a significant impact on the evolution of extremely short pulses in such systems. Specifically, extremely short optical pulses, consisting of two electric field oscillations, cause the appearance of a tail associated with the excitation of nonlinear waves. Due to the large spin–orbit interaction in germanene, this tail behind the main pulse is much smaller in germanene-based samples as compared to graphene-based ones, thereby making germanene a preferred material for the stable propagation of pulses along the sample.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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