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Full field of view super-resolution imaging based on two static gratings and white light illumination

机译：基于两个静态光栅和白光照明的全视场超分辨率成像

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摘要

The usage of two static gratings for obtaining super-resolved imaging dates back to the work by Bachl and Lukosz in 1967. However, in their approach a severe reduction in the field of view was the necessary condition for improving the resolution. We present an approach based on two static gratings without sacrificing the field of view. The key idea for not paying with the field of view is to use white light illumination to average the ghost images obtained outside the region of interest since the positions of those images are wavelength dependent. Moreover, large magnification is achieved by using a commercial microscope objective instead of a test system with a unity magnification as presented in previous works. Because of the large magnification, the second grating has a low spatial period. This allows us to create an intermediate image and use a second imaging lens with low resolution capability while still obtaining an imaging quality as good as that provided by the first imaging lens. This is an important improvement in comparison with the original super-resolving method with two fixed gratings.
机译：使用两个静态光栅获得超分辨成像的历史可追溯到1967年Bachl和Lukosz的工作。然而，在他们的方法中，严重降低视野是提高分辨率的必要条件。我们提出一种基于两个静态光栅的方法，而不会牺牲视场。不用付出视野的关键思想是使用白光照明来对在感兴趣区域之外获得的重影图像进行平均，因为这些图像的位置取决于波长。此外，通过使用商用显微镜物镜代替先前工作中介绍的具有统一放大倍率的测试系统，可以实现大放大倍率。由于放大倍数大，第二光栅的空间周期短。这允许我们创建中间图像并使用具有低分辨率能力的第二成像镜头，同时仍获得与第一成像镜头相同的成像质量。与具有两个固定光栅的原始超分辨方法相比，这是一个重要的改进。

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