Focused laser-like light that covers a wide range of frequencies is highly desirable for many scientific studies and for many applications, for instance, quality control of manufacturing semiconductor ...

A tunable metasurface can control optical light in space and time, offering a path toward new ways of wirelessly and securely transmitting large amounts of data both on Earth and in space. It is a ...

Caltech scientists have developed a new way to produce optical frequency combs—important tools in devices that keep time and ...

A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many colors. The trick combines two geometric phase effects so each spin channel ...

Sergey Kruk receives funding from the Australian Research Council (DE210100679). Anastasiia Zalogina does not work for, consult, own shares in or receive funding from any company or organization that ...