Researchers are making progress toward a “perfect lens” that will be able to resolve an organelle assembling a protein or a virus attacking a cell. From ribosomes assembling proteins to viruses ...

Conventional curved lenses, which direct light by refraction in glass or plastic, are often bulky and heavy, offering only limited control of light waves. Metasurfaces, in contrast, are flat and ...

Digital photography has brought the artform a long way. A camera is only as good as the lens and Canon has an ultra-wide that's pricey, but worth it.

Nearly a decade after getting waves of light to bend backward, physicists have done the same with electrons. Electrons coursing through a sheet of carbon atoms exhibited negative refraction, bending ...

A new laser under development by BAE Systems could boost a high-flying airplane's ability to spot targets on the ground, creating a temporary floating "lens" in midair that magnifies objects. The same ...

For many Class 12 students, Ray Optics marks the point where Physics begins to feel overwhelming. The chapter introduces mirrors, lenses, refraction and optical instruments, all packed with formulas, ...