Light distribution data (IMAGE) University of Maryland Caption Distributions of the laser light collected after the hallway journey without a waveguide (left) and with a waveguide (right). Credit Intense Laser-Matter Interactions Lab, UMD Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.