一个统一的复杂弗雷尼尔模型,用于基于物理的长波红外成像和模拟
Peter Ter Heerdt1, William Keustermans1, Ivan De Boi1
1InViLab Research Group, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium.
Journal of imaging
|January 27, 2026
概括
本研究提出了一个统一的弗雷内尔方程模型,用于准确的红外界面行为. 新模型通过稳定各种材料和波长的计算来增强光谱染和红外成像模拟.
科学领域:
- 光学和光子学 在光学和光子学.
- 计算物理 计算物理
- 材料科学 材料科学 材料科学
背景情况:
- 在材料接口上精确建模光物相互作用对于红外 (IR) 成像,染和光学系统模拟至关重要.
- 短波至长波红外 (SWIR-LWIR) 频谱存在挑战,原因是波长依赖的材料特性 (分散) 和复杂的折射率.
研究的目的:
- 开发Fresnel方程的统一公式,用于在整个IR频谱中物理一致的接口建模.
- 解决经典弗雷内尔方程中的数值不稳定性和符号模两可,特别是对于吸收材料和不同的冲击角度.
主要方法:
- 引入了弗雷内尔方程的新公式,其中包含了波长依赖的复杂折射率数据.
- 重构经典表达式以消除符号模两可,提高数字稳定性.
- 使用光谱染模拟验证了模型,并将LWIR发射模拟与实验测量进行了比较.
主要成果:
- 拟议的模型为介电介质和导体在发生角度之间提供了稳定和物理一致的接口行为.
- 频谱染模拟显示了各种IR光学属性的现实反射率和传导率.
- 模拟加热玻璃球的LWIR发射与LWIR摄像头测量结果有很好的一致性.
结论:
- 统一的弗雷内尔方程公式公式为IR应用中波长参数接口建模提供了一个实用且有物理依据的工具.
- 该模型支持诸如光谱染,合成数据生成和红外系统分析等先进应用.
- 这项工作提高了红外光学和传感系统模拟的准确性和稳定性.
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