(Tokyo University of Science) Using the optical properties of a material to manipulate light signals is called light modulation, a method widely used in optical communication. In a groundbreaking study, a group of scientists at the Tokyo University of Science has come up with a novel method of modulating light, using water as a medium. This method is inexpensive and more efficient than existing ones, paving the way for new, improved optical devices.

Original source: https://www.eurekalert.org/pub_releases/2019-11/tuos-nwo111919.php