Swiss-Cross Plasmonic Nanostructures (image) DOE/Lawrence Berkeley National Laboratory Caption When the two arms of this Swiss-cross nanostructure oscillate in phase, symmetric phonons are produced. When the arms oscillate out of phase, anti-symmetric phonons are generated. The differences enable the detection of nanoscale motion. Credit Image courtesy of Xiang Zhang group, Berkeley Lab Usage Restrictions None 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.