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arXiv 1506.06237physics.optics
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用于定量相位成像的基于数字微镜器件的主动照明

Active illumination using a digital micromirror device for quantitative phase imaging

Seungwoo Shin, Kyoohyun Kim, Jonghee Yoon, YongKeun Park

AI总结:

本研究提出一种采用数字微镜器件(DMD)的低成本高效主动照明方法,结合马赫-曾德尔干涉仪测量不同入射角的样品复光场,重建高分辨率二维相位图与三维折射率断层图,经胶体球、生物细胞成像验证其照明控制快速稳定。

摘要:

我们提出了一种功能强大且成本效益高的主动照明方法,该方法采用数字微镜器件(DMD)应用于定量相位成像技术。通过在DMD上显示二元照明图案并配合适当的空间滤波,可生成具有不同照明角度的平面波并入射到样品上。随后通过马赫-曾德尔干涉仪测量不同入射角下获得的样品复光场,由此重建出样品的高分辨率二维合成孔径相位图像和三维折射率断层图。我们通过对胶体球以及包括人类红细胞和HeLa细胞在内的生物细胞成像,验证了该方法快速稳定的照明控制能力。

英文摘要:

We present a powerful and cost-effective method for active illumination using a digital micromirror device (DMD) for quantitative phase imaging techniques. Displaying binary illumination patterns on a DMD with appropriate spatial filtering, plane waves with various illumination angles are generated and impinged onto a sample. Complex optical fields of the sample obtained with various incident angles are then measured via Mach-Zehnder interferometry, from which a high-resolution two-dimensional synthetic aperture phase image and a three-dimensional refractive index tomogram of the sample are reconstructed. We demonstrate the fast and stable illumination control capability of the proposed method by imaging colloidal spheres and biological cells, including a human red blood cell and a HeLa cell.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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