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arXiv 2211.16166physics.optics
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色散含时材料的光学性质

Optical properties of dispersive time-dependent materials

Jamison Sloan, Nicholas Rivera, John D Joannopoulos, Marin Soljačić

摘要:

时变光学材料因其在频率转换、非互易物理、光子时间晶体等方面的潜力而引起了人们的兴趣。然而,对时变材料的描述主要限于材料共振(即,分散)可以忽略。在这项工作中,我们描述了如何从微观量子力学模型的时间驱动系统出现这些色散时变材料的光学。我们的结果是基于一个框架,通过量子力学线性响应理论描述的色散时变材料的光学。重要的是,我们澄清了随时间变化的材料的响应函数是如何连接到能量转移。我们提供了三个例子,我们的框架适用于系统,可用于模拟各种各样的实验:几个级别的模型,可以描述原子,自旋,或超导量子位,振荡器模型,可以描述极性绝缘体的强响应,和强驱动的原子模型,可以描述的高度非微扰光学响应的材料进行高次谐波产生。我们预计,我们的研究结果将广泛适用于强时变系统中的电磁现象。

英文摘要:

Time-varying optical materials have attracted recent interest for their potential to enable frequency conversion, nonreciprocal physics, photonic time-crystals, and more. However, the description of time-varying materials has been primarily limited to regimes where material resonances (i.e., dispersion) can be neglected. In this work, we describe how the optics of these dispersive time-varying materials emerges from microscopic quantum mechanical models of time-driven systems. Our results are based on a framework for describing the optics of dispersive time-varying materials through quantum mechanical linear response theory. Importantly, we clarify how response functions for time-varying materials are connected to energy transfer. We provide three examples of our framework applied to systems which can be used to model a wide variety of experiments: few level models that can describe atoms, spins, or superconducting qubits, oscillator models which can describe the strong response of polar insulators, and strongly driven atom models which can describe the highly nonperturbative optical response of materials undergoing high harmonic generation. We anticipate that our results will be broadly applicable to electromagnetic phenomena in strongly time-varying systems.

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。

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