Figure 1 (IMAGE) American Physical Society Caption Photos of target chamber without and with injection and guiding of ultra-intense laser pulse into 20 cm long waveguide. Laser guiding leads to multi-GeV electron acceleration, with an intense burst of electrons emerging at the exit of the plasma waveguide (to the right). Credit University of Maryland Usage Restrictions Use with credit 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.