Structured light (IMAGE) University of the Witwatersrand Caption When light passes through a noisy channel such as the atmosphere, it gets distorted, but there exist complex forms of light that come out distortion-free, so that the output pattern is the same as the input. Credit Wits University Usage Restrictions No restrictions. License Public Domain 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.