Adiabatic Amplification of Plasmons and Demons in 2D Systems.
Adiabatic Amplification of Plasmons and Demons in 2D Systems.
复制标题
二维系统中等离子体激元和恶魔的绝热放大。
DOI：
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发表时间：
2016
影响因子：
8.6
通讯作者：
M. Fogler
中科院分区：
文献类型：
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作者：
Zhiyuan Sun;D. Basov;D. Basov;M. Fogler
我们从理论上研究了二维导体中带电集体模的瞬态模式频率随时间逐渐增加或减少的热电子。我们表明，模式的损耗补偿甚至放大可能发生。我们将我们的理论应用于石墨烯中的两种集体模式，即等离子体激元和能量波，它们可以在光泵浦探测实验中进行探测。
We theoretically investigate charged collective modes in a two-dimensional conductor with hot electrons where the instantaneous mode frequencies gradually increase or decrease with time. We show that the loss compensation or even amplification of the modes may occur. We apply our theory to two types of collective modes in graphene, the plasmons and the energy waves, which can be probed in optical pump-probe experiments.