arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.02118physics.opticsphysics.app-ph
收藏

受半导体晶体管启发的非互易和非厄米材料响应

Nonreciprocal and non-Hermitian material response inspired by semiconductor transistors

Sylvain Lannebère, David E. Fernandes, Tiago A. Morgado, Mário G. Silveirinha

摘要:

在这里,传统的半导体晶体管的操作的启发,我们介绍了一类新的体材料与非互易性和非厄米电磁响应。我们的分析表明,材料的非线性与静电偏置相结合,可能会导致线性化的介电常数张量,缺乏厄米和转置对称性。值得注意的是,材料可以耗散或产生能量,这取决于电场分量的相对相位。我们介绍了一个简单的设计的电磁隔离器的基础上的理想化的“超导超材料”,并表明其性能可以在原则上超过传统的法拉第隔离器由于材料增益。此外,有人建议,类似的材料响应可以在自然介质中的非平衡状态下进行工程设计。我们的解决方案确定了一个全新的范例,打破了电磁互易性的大块非线性材料使用静电偏置。

英文摘要:

Here, inspired by the operation of conventional semiconductor transistors, we introduce a novel class of bulk materials with nonreciprocal and non-Hermitian electromagnetic response. Our analysis shows that material nonlinearities combined with a static electric bias may lead to a linearized permittivity tensor that lacks the Hermitian and transpose symmetries. Remarkably, the material can either dissipate or generate energy, depending on the relative phase of the electric field components. We introduce a simple design for an electromagnetic isolator based on an idealized "MOSFET-metamaterial" and show that its performance can in principle surpass conventional Faraday isolators due to the material gain. Furthermore, it is suggested that analogous material responses may be engineered in natural media in nonequilibrium situations. Our solution determines an entirely novel paradigm to break the electromagnetic reciprocity in a bulk nonlinear material using a static electric bias.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑