Microchannel (IMAGE) Purdue University Caption This image, taken with a scanning electron microscope, shows a microchannel that was created using an ultrafast-pulsing laser. Credit Purdue University School of Mechanical Engineering image/Yung Shin 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.