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 ...

Ocular diseases can cause vision problems or even blindness if they are not detected early. Some ocular diseases generate irregular physical changes in the eye; therefore, reliable diagnostic ...

WASHINGTON -- Using a single lens that is about one-thousandth of an inch thick, researchers have created a camera that does not require focusing. The technology offers considerable benefits over ...

Chemical processes can be monitored using various optical fiber-based probes in normal-incidence reflection or surface-reflection configurations 1,2. A major advantage of such probes is their ...