Review of thermal infrared polarimetry, part 2: experiment
Review of thermal infrared polarimetry, part 2: experiment
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DOI：
10.1117/1.oe.61.8.080901
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发表时间：
2022-08
影响因子：
1.3
通讯作者：
N. Hagen
中科院分区：
文献类型：
--
作者：
N. Hagen
抽象。在本文第一部分对热偏振理论进行了讨论之后，我们现在回顾实验测量红外偏振特性的实用方法。从非均匀介质的热辐射模型开始，我们讨论了油漆的复杂性以及如何确定用于黑体模拟器的油漆的理想厚度。另一种常用的非均匀材料是阳极氧化铝，我们提供了一个广泛的讨论，其迷人的结构和热红外的光学性能。理论分析和实验测量显示了氧化铝在长波红外区域的特殊性质如何结合联合收割机，以创造一种具有令人惊讶的高发射率的材料，用于光学光滑的蓝宝石和高度不均匀的阳极氧化涂层铝。为了说明本综述第1部分中给出的热偏振理论的特征，我们还提供了一系列红外偏振图像，并演示了使用方便的参考源进行热偏振测试。
Abstract. After the discussion on thermal polarization theory from part 1 of this review, we now review practical methods for experimentally measuring infrared polarization properties. Starting with a model for thermal emission from inhomogeneous media, we discuss the complexities of paints and how to determine the ideal thickness of paints used for blackbody simulators. Another commonly used inhomogeneous material is anodized aluminum, and we provide an extensive discussion of its fascinating structure and its optical properties in the thermal infrared. Theoretical analysis and experimental measurements show how the peculiar properties of alumina in the longwave infrared region combine to create a material that has a surprisingly high emissivity, for optically smooth sapphire and highly inhomogeneous anodize-coated aluminum. To illustrate features of thermal polarization theory given in part 1 of this review, we also present a series of infrared polarization images, and demonstrate the use of a convenient reference source for thermal polarization testing.