Researchers have reproduced a full-color image of Claude Monet’s “Impression, Sunrise,” using arrays of metal nanostructures.
Conventional color printing involves overlaying dots of cyan, magenta, yellow, and black pigments in different ratios to get a spectrum of colors. In the new coloring scheme, each pixel is made of four nanopillars topped with metal disks. Nanoscale metal structures, like these disks, act as resonators, meaning that electrons on the metal surface oscillate at certain frequencies depending on the structure’s size. As a result, a metal nanostructure reflects only light of a frequency that matches its oscillating electrons. So by changing the size and the shape of the metal structures, researchers can produce different colors.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — How Intel Makes a Chip
Wearables — Tape tactics
Electronics — Ground connections cooler via more vias
Biohacking — Itch Tracker for Apple Watch
No comments yet.
Sorry, the comment form is closed at this time.