Laser Photo Collage (IMAGE) Arizona State University Caption This photo collage, supplied by the researchers, shows the mixed emission color from a multi-segment nanosheet in the colors of red, green, blue, yellow, cyan, magenta and white. The top dots in each photograph are the direct image of laser emission, while the tails under these dots are the reflection from the substrate. Credit ASU/<i>Nature Nanotechnology</i> Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.