Massive Photons 3 (IMAGE) University of Warsaw, Faculty of Physics Caption The scheme of the experiment - circular polarization of light (marked in red and blue) transmitted through a cavity filled with liquid crystal depending on the direction of propagation. (Source: M. Krol, UW Physics) Credit Source: M. Krol, UW Physics Usage Restrictions The image may only be used with the following caption: The scheme of the experiment - circular polarization of light (marked in red and blue) transmitted through a cavity filled with liquid crystal depending on the direction of propagation. (Source: M. Krol, UW Physics) License Licensed 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.