Imaging Half-Light, Half-Matter Quasiparticles (IMAGE) Iowa State University Caption This image shows how researchers launched and studied half-light, half-matter quasiparticles called exciton-polaritons. A laser from the top left shines on the sharp tip of a nano-imaging system aimed at a flat semiconductor. The red circles inside the semiconductor are the waves associated with the quasiparticles. Credit Image courtesy of Zhe Fei/Iowa State University 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.