Batshev Vladislav, Machikhin Alexander, Martynov Grigoriy, Pozhar Vitold, Boritko Sergey, Sharikova Milana, Lomonov Vladimir, Vinogradov Alexander
Scientific and Technological Center of Unique Instrumentation Russian Academy of Sciences, Butlerova Str. 15, Moscow 117342, Russia.
Bauman Moscow State Technical University (National Research University), 2-nd Baumanskaya Str. 5, Moscow 105005, Russia.
Sensors (Basel). 2020 Aug 8;20(16):4439. doi: 10.3390/s20164439.
Optical biomedical imaging in short wave infrared (SWIR) range within 0.9-1.7 μm is a rapidly developing technique. For this reason, there is an increasing interest in cost-effective and robust hardware for hyperspectral imaging data acquisition in this range. Tunable-filter-based solutions are of particular interest as they provide image processing flexibility and effectiveness in terms of collected data volume. Acousto-optical tunable filters (AOTFs) provide a unique set of features necessary for high-quality SWIR hyperspectral imaging. In this paper, we discuss a polarizer-free configuration of an imaging AOTF that provides a compact and easy-to-integrate design of the whole imager. We have carried out image quality analysis of this system, assembled it and validated its efficiency through multiple experiments. The developed system can be helpful in many hyperspectral applications including biomedical analyses.
0.9 - 1.7μm短波红外（SWIR）范围内的光学生物医学成像技术发展迅速。因此，人们越来越关注用于该范围内高光谱成像数据采集的经济高效且坚固耐用的硬件。基于可调谐滤波器的解决方案特别受关注，因为它们在收集的数据量方面提供了图像处理的灵活性和有效性。声光可调谐滤波器（AOTF）为高质量SWIR高光谱成像提供了一组独特的必要特性。在本文中，我们讨论了成像AOTF的无偏振器配置，该配置为整个成像器提供了紧凑且易于集成的设计。我们对该系统进行了图像质量分析，组装了该系统，并通过多次实验验证了其效率。所开发的系统可在包括生物医学分析在内的许多高光谱应用中发挥作用。
