Optical microscopes are still second to none when it comes to analyzing biological samples. However, their low resolution, improved only in recent years in STED microscopes, continues to be a problem.

Using a tiny, spherical glass lens sandwiched between two brass plates, the 17th-century Dutch microscopist Antonie van Leeuwenhoek was the first to officially describe red blood cells and sperm cells ...

By combining two fundamentally different microscopy techniques, researchers can now measure the optical properties of a ...

The definition and reporting of spatial resolution for coherent imaging methods varies widely in the imaging community. We advocate the use of a standard spoke-pattern imaging target and the mandatory ...

Researchers have shown that consumer-grade 3D printers and low-cost materials can be used to produce multi-element optical components that enable super-resolution imaging, with each lens costing less ...