USS Elmo Zumwalt (IMAGE) Naval Research Laboratory Caption Spinel windows can have applications as electro-optical/infrared deckhouse windows in the new class of US Navy destroyers, like the USS Elmo Zumwalt pictured above, that feature a low radar signature compared with current vessels. Credit US Navy photo courtesy of General Dynamics 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.