Probing infrared detectors through energy-absorption interferometry
Probing infrared detectors through energy-absorption interferometry
复制标题
通过能量吸收干涉测量法探测红外探测器
DOI：
10.1117/12.2271622
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Thomas C
中科院分区：
文献类型：
--
作者：
Thomas C
我们描述了一种干涉技术，能够仅使用功率测量来充分表征少模和多模探测器的光学响应，及其在 1550 nm 波长下的实现。能量吸收干涉测量 (EAI) 是一种实验程序，其中被测系统由两个相干锁相源激发。随着源之间的相对相位变化，在检测器输出中观察到条纹。通过迭代源位置，条纹的复杂可见性允许检索两点探测器响应函数：该相关函数对应于探测器最敏感的相干状态。然后，该探测器响应函数可以分解为一组自然模式，其中探测器对功率不相干敏感。因此，EAI 允许重建探测器吸收能量的各个自由度，包括它们的相对灵敏度和完整的空间形式。因此可以研究吸收结构的耦合机制及其潜在的固态现象，并直接应用于改进当前的红外探测器技术。 EAI 之前已针对毫米波长进行了演示。在这里，我们概述了 EAI 的理论基础，并介绍了我们构建的室温 1550 nm 波长红外实验。最后，我们讨论这个实验系统如何让我们研究基于光纤的系统和近红外探测器的光学耦合。
We describe an interferometric technique capable of fully characterizing the optical response of few-mode and multi-mode detectors using only power measurements, and its implementation at 1550 nm wavelength. EnergyAbsorption Interferometry (EAI) is an experimental procedure where the system under test is excited with two coherent, phase-locked sources. As the relative phase between the sources is varied, a fringe is observed in the detector output. Iterating over source positions, the fringes’ complex visibilities allow the two-point detector response function to be retrieved: this correlation function corresponds to the state of coherence to which the detector is maximally sensitive. This detector response function can then be decomposed into a set of natural modes, in which the detector is incoherently sensitive to power. EAI therefore allows the reconstruction of the individual degrees of freedom through which the detector can absorb energy, including their relative sensitivities and full spatial forms. Coupling mechanisms into absorbing structures and their underlying solidstate phenomena can thus be studied, with direct applications in improving current infrared detector technology. EAI has previously been demonstrated for millimeter wavelength. Here, we outline the theoretical basis of EAI, and present a room-temperature 1550 nm wavelength infrared experiment we have constructed. Finally, we discuss how this experimental system will allow us to study optical coupling into fiber-based systems and near-infrared detectors.
通过能量吸收干涉测量表面偶极子的动力学行为
影响因子：
2.9
作者：
S. Withington;Christopher N. Thomas
通讯作者：
Christopher N. Thomas
红外和亚毫米波探测器的耦合模式理论
影响因子：
5.7
作者：
G. Saklatvala;S. Withington;M. Hobson
通讯作者：
M. Hobson
DOI：
10.1109/tthz.2015.2508005
发表时间：
2016-03-01
影响因子：
3.2
作者：
Risacher, Christophe;Guesten, Rolf;Rosner, Stefan
通讯作者：
Rosner, Stefan