[1] US Army Research Laboratory, 2800 Powder Mill Road, Adelphi MD 20783, United States
[2] University of Dayton, School of Engineering, 300 College Park, Dayton, OH 45469, United States
[3] University of Maryland, College Park, MD 20742, United States
[4] Optonicus, 300 College Park, Dayton, OH 45469, United States