Laser Shadow Effect (VIDEO) Optica This video is under embargo. Please login to access this video. Caption The interaction between the two light sources created a shadow on a screen that was visible as a dark area where the green laser blocked the blue light. Credit R. A. Abrahao, H. P. N. Morin, J. T. R. Pagé, A. Safari, R. W. Boyd, J. S. Lundeen 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.