Silicon Nanoposts (IMAGE) California Institute of Technology Caption Nanoposts of varying shapes can act as pixels in two different holograms. Credit Andrei Faraon/Caltech Usage Restrictions For use in news stories only 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.