John Hannegan John Hannegan, a graduate student and research scientist at the University of Maryland, adjusts photon collection optics in preparation for linking the trapped ion lab with another quantum lab. He is working with Army research at the Army Research Laboratory in Adelphi, Md. SHARE IMAGE: Download Image: Full Size (0.44 MB) Photo By: Army VIRIN: 210202-O-ZZ999-001M.JPG Photo Gallery