The Raman effect (IMAGE) University of Bath Caption Crystal violet scatters light into a rainbow, revealing the strength of interaction between light and helical nanostructures (artist's impression by photography) Credit Ventsislav Valev, Kylian Valev, Eva Valev, Robin Jones 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.