And remarkably, the color is strongest when the nanospheres have a little room around them, rather than being tightly packed – so less is more. "A single layer of sparsely distributed silicon ...

(Nanowerk News) While nanocrystals offer color tunability and are used in various technologies, achieving different colors requires using different nanocrystals for each color, and dynamic switching ...

Looking sharp and looking for light - Berkeley Lab researchers have engineered a new class of bowtie-shaped devices that capture, filter and steer light at the nanoscale. These "nano-colorsorter" ...

Lasers have revolutionized the world in many ways -- they allow everything from satellite communication to precision-cut diamond -- but even so, they were supposed to be so much more. From missile ...