The Absorbing System & Its Spectrum (IMAGE) Moscow Institute of Physics and Technology Caption On the left is the schematic of the absorbing system demonstrated by the authors of the paper. On the right is the reflectance spectrum from an optically thick layer of hexagonal boron nitride at different angles of incidence. Points A and B indicate the position of the conditions of complete absorption predicted theoretically. Credit Image courtesy of the authors of the study Usage Restrictions None 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.