کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1866675 | 1038037 | 2016 | 4 صفحه PDF | دانلود رایگان |
• 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.
Journal: Physics Letters A - Volume 380, Issue 38, 7 September 2016, Pages 3117–3120