Optical Window (IMAGE) Optica Caption The researchers developed a way to perform supercontinuum generation behind the same type of thick optical window found on high-pressure chambers used to study a hydrogen-based engine. Other methods for generating ultrabroadband excitation don’t work when these types of optical windows are present. Credit Alexis Bohlin, Luleå University of Technology 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.