Supraparticle laser (IMAGE) Optica Caption A supraparticle laser confines and amplifies light through whispering gallery modes — resonant light waves circulating along a spherical boundary — inside a tiny sphere made from aggregated colloidal quantum dots. Credit Dillon H. Downie, University of Strathclyde Usage Restrictions None License Original 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.