Metalens Detail Illustration (IMAGE) University of Pennsylvania Caption The researchers' metalens, which consists of many small nanopillars, approximates the effect of a Fresnel lens to direct light from a diamond nitrogen-vacancy (NV) center into an optic fiber, eliminating the need for a bulky microscope. Credit <em>Nature Communications</em> Usage Restrictions With credit. 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.