Fluorescence and Photoacoustic Images (IMAGE) Optica Caption The researchers demonstrated their new device by using it to image fluorescent beads (green) and red blood cells (red). The field-of-view is the size of a hair. Credit Emmanuel Bossy, CNRS/ Université Grenobe Alpes Laboratoire Interdisciplinaire de Physique 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.