Thin, simple diffractive lenses are notorious for their blurry images, so they have never been used in astronomical observatories. But if you could improve their clarity, using diffractive lenses ...

The endeavor to detect life on exoplanets is presently constrained by the limitations and logistical complexities inherent in building larger, more sensitive mirror-based space telescopes. A novel ...

In recent years, the world of optics has undergone a major shift. New research shows how light can be bent, focused, and even changed in color using structures so small they’re invisible to the eye.