Shapira Channa, Yariv Inbar, Ankri Rinat, Duadi Hamootal, Fixler Dror
Opt Express. 2021 Jul 5;29(14):22228-22239. doi: 10.1364/OE.431929.
Imaging turbid media is range limited. In contrast, sensing the medium's optical properties is possible in larger depths using the iterative multi-plane optical properties extraction technique. It analyzes the reconstructed reemitted light phase image. The root mean square of the phase image yields two graphs with opposite behaviors that intersect at µ's,cp. These graphs enable the extraction of a certain range of the reduced scattering coefficient, µ's. Here, we aim to extend the range of µ's detection by optical magnification. We use a modified diffusion theory and show how µ's,cp shifts with the varying magnification. The theoretical results were tested experimentally, showing that the technique can be adapted to different ranges of µ's by changing the magnification.
对浑浊介质进行成像的深度范围有限。相比之下，使用迭代多平面光学特性提取技术可以在更大深度检测介质的光学特性。该技术分析重建的再发射光相位图像。相位图像的均方根产生两个具有相反行为的图形，它们在μ's,cp处相交。这些图形能够提取一定范围的约化散射系数μ's。在此，我们旨在通过光学放大来扩展μ's的检测范围。我们使用修正的扩散理论，并展示μ's,cp如何随放大倍数的变化而移动。理论结果经过了实验验证，表明通过改变放大倍数，该技术可以适用于不同范围的μ's。
