First Full-Color Micro Images Produced with a 100,000-dpi Resolution

“Instead of using different dyes for different colors, we encoded color information into the size and position of tiny metal disks,” added Dr Joel Yang, the project leader of the research. “These disks then interact with light through the phenomenon of plasmon resonances. The team built a database of color that corresponded to a specific nanostructure pattern, size and spacing. These nanostructures were then positioned accordingly.