CAGE Setup (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This photo shows the setup for a system known as CAGE (Critically coupled waveguide-Amplified Graphene Electric field imaging device) that is designed to precisely record the properties of faint electrical signals using an infrared laser and a layer of graphene. The CAGE platform can be used to image the electrical signals of living cells. Credit Halleh Balch and Jason Horng/Berkeley Lab and UC Berkeley 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.