Scattering-induced amplification of two-dimensional plasmons: Electromagnetic modeling
Scattering-induced amplification of two-dimensional plasmons: Electromagnetic modeling
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二维等离子体的散射诱导放大：电磁模型
DOI：
10.1063/5.0050053
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发表时间：
2021-06
影响因子：
3.2
通讯作者：
S. Zonetti;S. Siaber;J. Cunningham;O. Sydoruk
中科院分区：
文献类型：
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作者：
S. Zonetti;S. Siaber;J. Cunningham;O. Sydoruk
使用两个严格的电磁方法，我们研究了二维系统中的等离子体散射，并表明等离子体放大是可能的直流电流的存在。考虑了两种情况：来自不同二维通道之间的界面的等离子体散射和来自任意厚度的电接触的等离子体反射。在每种情况下，直流电流的等离子体反射和透射系数和等离子体功率的影响都被量化。研究了等离子体激元往返增益可能超过1的谐振系统，表明等离子体激元产生的可能性。
Using two rigorous electromagnetic approaches, we study plasmon scattering in two-dimensional systems and show that plasmon amplification is possible in the presence of dc currents. Two scenarios are considered: plasmon scattering from an interface between different two-dimensional channels and plasmon reflection from electric contacts of arbitrary thickness. In each case, the effect of a dc current of the plasmon reflection and transmission coefficients and the plasmon power are both quantified. A resonant system is studied where plasmon roundtrip gain may exceed unity, showing the possibility of plasmon generation.