能量吸收干涉法
Energy Absorption Interferometry
AI总结：
本文提出了一种用于测量多体系统能量吸收特性的干涉方法，并探讨了噪声传播对实验结果的影响。
摘要：
能量吸收干涉法（EAI）是一种用于测量许多体系统通过吸收能量的各个自由度的响应性和复值空间偏振特性的方法。它最初是用量子关联函数的语言来表述的，使其适用于不同类型的激发（电磁、弹性及声场）。EAI已被应用于各种理论和实验方式中。它特别有效于表征超低噪声远红外和光学设备、成像阵列和完整仪器的多模行为，在这些情况下它可以用来确保系统对携带信号的部分相干场最大化响应，同时避免只携带噪声的场。尽管其有用性，但目前尚无关于电磁EAI的全面概述。在本文中，我们描述了该方法的理论基础，并在采样、相位参考、模式重建和噪声等方面提出了多种新技术。我们首次提出了噪声如何通过实验传播，从而导致频谱和模态图上的误差和伪影的分析。噪声模型是必不可少的，因为它决定了所需信噪比，以确保给定的实验保真度水平。
英文摘要：
Energy Absorption Interferometry (EAI) is a technique for measuring the responsivities and complex-valued spatial polarimetric forms of the individual degrees of freedom through which a many-body system can absorb energy. It was originally formulated using the language of quantum correlation functions, making it applicable to different kinds of excitation (electromagnetic, elastic and acoustic fields). EAI has been applied in a variety of theoretical and experimental ways. It is particularly effective at characterising the multimode behaviour of ultra-low-noise far-infrared and optical devices, imaging arrays, and complete instruments, where it can be used to ensure that a system is maximally responsive to those partially coherent fields that carry signal whilst avoiding those that only carry noise. Despite its utility there is no comprehensive overview of electromagnetic EAI. In this paper we describe the theoretical foundations of the method, and present a range of new techniques in areas relating to sampling, phase referencing, mode reconstruction and noise. We present, for the first time, an analysis of how noise propagates through an experiment resulting in errors and artefacts on spectral and modal plots. A noise model is essential, because it determines the signal to noise ratio needed to ensure a given level of experimental fidelity.
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。
