Video of 3D printing (VIDEO) Optica This video is under embargo. Please login to access this video. Caption The video shows printing using a femtosecond laser alone at 50% of the threshold power, resulting in unsuccessful printing (left). When a second laser (green) is used together with the femtosecond laser at 50% of the threshold power, printing is successful. Credit Anwarul Akash, Purdue University Usage Restrictions None 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.