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Ultra high-res images with no-lens microscope

A new electron microscope that works without a lens may create the highest resolution images ever seen.

Transmission electron microscopy (TEM), which looks through an object to see atomic features within it, has been constrained for over 70 years by the relatively poor lenses that are used to form the image.

The new method—called electron ptychography—dispenses with the lens and instead forms the image by reconstructing the scattered electron-waves after they have passed through the sample using computers.

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