Research team identifies second-harmonics generation interference in 2-D heterobilayers
Since the invention of world's first laser—the ruby laser—in 1960, the human desire to control light has spread to various industries, including telecommunications, medicine, GPS, optical sensors and optical computers. Recently, a POSTECH research team has taken a step closer to its goal of controlling light by identifying nonlinear optical phenomena occurring in heterobilayers composed of two-dimensional materials.