论文标题
高度不匹配的合金中的无损等离子体
Lossless plasmons in highly mismatched alloys
论文作者
论文摘要
我们探讨了高度不匹配的合金（HMA）实现无损等离子体技术的潜力。具有等离子体频率的系统，该系统没有可能的带或内贴片的过程称为无损的系统，因为该等离子体没有2个颗粒损耗通道。我们发现，带有传导带抗骨架在HMA中拆分的乐队可以保证无损的频率窗口。当这种材料被掺杂并产生等离激元的行为时，我们研究了等离子体频率在无损窗口中掉落所需的条件，从而实现了无损等离子体。考虑到具有传导带抗冲导的一般的HMA类别，我们在其参数空间中发现了通用轮廓，其中可能会在某些掺杂范围内进行无损等离子体。我们的分析表明，具有较重有效质量的HMA对于实现无损等离子体材料是最有希望的。
We explore the potential of highly mismatched alloys (HMAs) for realizing lossless plasmonics. Systems with a plasmon frequency at which there are no interband or intraband processes possible are called lossless, as there is no 2-particle loss channel for the plasmon. We find that the band splitting in HMAs with a conduction band anticrossing guarantees a lossless frequency window. When such a material is doped, producing plasmonic behavior, we study the conditions required for the plasmon frequency to fall in the lossless window, realizing lossless plasmons. Considering a generic class of HMAs with a conduction band anticrossing, we find universal contours in their parameter space within which lossless plasmons are possible for some doping range. Our analysis shows that HMAs with heavier effective masses are most promising for realizing a lossless plasmonic material.
