Scientists have developed a ground-breaking achromatic lens for X-rays. This allows the X-ray beams to be accurately focused on a single point even if they have different wavelengths. The new lens ...

Using 3D printing and porous silicon, researchers at the University of Illinois Urbana-Champaign have developed compact, visible wavelength achromats that are essential for miniaturized and ...

Flat optics are made of nanostructures containing high-refractive index materials to produce lenses with thin form factors that function only at specific wavelengths. Materials scientists have ...

An achromatic lens is used to minimize or eliminate chromatic aberration, and its achromatic design also helps to minimize spherical aberration, which is much smaller than a single lens. When used in ...

The near-axial aberrations such as spherical aberration, coma aberration, and chromatic aberration are well corrected by computer optimization design. When used to focus the collimation, the surface ...

“Diffractive and refractive optical elements have become an integral part of most high-resolution X-ray microscopes. However, they suffer from inherent chromatic aberration. This has to date ...