[1] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA
[2] North Amer Inc, Global Strategies Grp, Crofton, MD 21114 USA
[3] Rochester Inst Technol, Chem & Biomed Engn Dept, Rochester, NY 14623 USA
[4] Rochester Inst Technol, Phys Dept, Rochester, NY 14623 USA