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Wide field-of-view microscope based on holographic focus grid illumination

机译:基于全息聚焦栅格照明的宽视场显微镜

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摘要

We have developed a new microscopy design that can achieve wide field-of-view (FOV) imaging and yet possesses resolution that is comparable to a conventional microscope. In our design, the sample is illuminated by a holographically projected light-spot grid. We acquire images by translating the sample across the grid and detecting the transmissions. We have built a prototype system with an FOV of 6mm×5mm and acquisition time of 2.5s. The resolution is fundamentally limited by the spot size—our demonstrated average FWHM spot diameter was 0.74μm. We demonstrate the prototype by imaging a U.S. Air Force target and a lily anther. This technology is scalable and represents a cost-effective way to implement wide FOV microscopy systems
机译:我们开发了一种新的显微镜设计,可以实现宽视场(FOV)成像,并且具有可与传统显微镜媲美的分辨率。在我们的设计中,样品由全息投影的光斑栅格照明。我们通过在网格上平移样本并检测传输来获取图像。我们建立了一个原型系统,其FOV为6mm×5mm,采集时间为2.5s。分辨率从根本上受到光斑尺寸的限制-我们证明的平均FWHM光斑直径为0.74μm。我们通过对美国空军目标和百合花药进行成像来演示原型。该技术是可扩展的,代表了实现广泛的FOV显微镜系统的一种经济有效的方式

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