"High-numerical aperture lenses/microscope objectives are major optical components that are widely used in microscopy, optical detection systems, optical lithography, quantum optics, etc.," ...

Led by Professor Peter Banzer, they propose and implement a novel technique for an absolute characterization of high numerical aperture microscope objectives, working without an aberration-less or ...

Typically, Muller said, the resolution of an electron microscope is dependent in large part on the numerical aperture of the lens. In a basic camera, numerical aperture is the reciprocal of the ...

The trouble is that electron microscope lenses are not commensurately precise. Typically, Muller said, the resolution of an electron microscope depends in large part on the numerical aperture of the ...