Professor Guoan Zheng’s lab developed a new image sensor that achieves optical super-resolution without lenses. Inspired by ...

Abstract: To overcome the challenge of balancing high performance with low manufacturing cost in large-aperture compact antenna test range (CATR) systems, this letter proposes and validates a novel ...

The requirement for an object to be surrounded by empty space when imaged by coherent X-ray diffraction was once thought to be a fundamental limitation. A variant of coherent diffractive imaging ...

IN an earlier paper1, we have described a new type of interferometer which has been used to measure the angular diameter of radio stars2. In this instrument the signals from two aerials Ax and A2 (Fig ...

A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...