当代光子谐振结构中品质因数的计算
On the Calculation of the Quality Factor in Contemporary Photonic Resonant Structures
摘要：
当代光子和等离子体共振系统的共振特性以及主要是品质因数$Q$的正确数值计算是极其重要的，因为$Q$限定带宽并且影响非线性和自发发射过程。在这里，我们比较评估常用的方法计算$Q$使用光谱模拟与商业上可用的，通用的软件。我们研究这些方法的适用范围，通过明智地选择的例子，涵盖不同的材料系统和频率制度，从远红外到可见光。我们关心的是强调限制每一个适用性的潜在物理和数字原因。我们的研究结果表明，在当代系统（等离子体，二维材料）$Q$计算是不平凡的，主要是由于强材料色散和光泄漏的物理复杂性。我们的工作可以作为一个谨慎和准确的计算的品质因数的参考，并可以作为一个手册，其在导波和自由空间的光子和等离子体共振系统的评估。
英文摘要：
The correct numerical calculation of the resonance characteristics and, principally, the quality factor $Q$ of contemporary photonic and plasmonic resonant systems is of utmost importance, since $Q$ defines the bandwidth and affects nonlinear and spontaneous emission processes. Here, we comparatively assess the commonly used methods for calculating $Q$ using spectral simulations with commercially available, general-purpose software. We study the applicability range of these methods through judiciously selected examples covering different material systems and frequency regimes from the far-infrared to the visible. We care in highlighting the underlying physical and numerical reasons limiting the applicability of each one. Our findings demonstrate that in contemporary systems (plasmonics, 2D materials) $Q$ calculation is not trivial, mainly due to the physical complication of strong material dispersion and light leakage. Our work can act as a reference for the mindful and accurate calculation of the quality factor and can serve as a handbook for its evaluation in guided-wave and free-space photonic and plasmonic resonant 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。
