(IMAGE) Martin-Luther-Universität Halle-Wittenberg Caption Illustration of the new miniature terahertz sources Credit Reprinted with permission from ACS Appl. Nano Mater. 2021, 4, 7, 7454–7460. Copyright 2021 American Chemical Society. Usage Restrictions Use with exact credit. 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.