Focused laser-like light that covers a wide range of frequencies is highly desirable for many scientific studies and for many ...

At the core of the breakthrough is an optical parametric oscillator (OPO), a resonator that converts incoming laser light ...

Key result A six-year-long research effort has seen researchers in Canada build a chip-scale device that can generate multiphoton entangled states. (Courtesy: Ultrafast Optical Processing Group) ...