In a study that may have considerable implications for creating new generations of displays for electronic devices, researchers at the Harvard University School of Engineering and Applied Sciences (SEAS) managed to develop a technique for controlling the color of nanoparticles.
What the team basically did was create a new, tunable color filter, which can control the color output of metal nanoparticles with extreme precision. “With the advances in nanotechnology, we can precisely control the shape of the optical nanoantennas,” study co-author and SEAS expert Tal Ellenbogen says.
This implies that the tiny devices can be made to react differently depending on the colors they are subjected to, producing light of various colors and polarizations. In addition to potentially enabling the development of advanced displays, the achievement could also be used to create new security tags.